Since the beginning of this year, in the face of the complicated domestic and international economic situation, China’s foreign trade has withstood the pressure. In the first quarter, the total import and export volume reached 9.42 trillion yuan, up 10.7% year-on-year. The overall start was good, which laid a good foundation for achieving the annual target and fully reflected the resilience of foreign trade development.

We should also see that China’s foreign trade development environment is becoming more severe and complicated, and it faces many risks and challenges. A number of experts said that we should do a good job in stabilizing foreign trade policies, study effective new policies, and strive to keep foreign trade running in a reasonable range throughout the year.

Steady foreign trade policy continues to exert strength.

In the first quarter, despite the complicated and severe international environment, China’s export enterprises had a strong ability to adapt to changes in external demand. At the same time, the policy of stabilizing foreign trade continued to exert strength, and the effect of building the "Belt and Road" continued to emerge. The new foreign trade format developed rapidly and achieved a steady start on the whole.

"In the case of a high base, China’s foreign trade still maintains a double-digit rapid growth, which fully reflects the resilience of China’s foreign trade development." Liu Xiangdong, deputy director of the Economic Research Department of China International Economic Exchange Center, said.

Data show that in the first quarter, China’s industrial export delivery value increased by 14.4% year-on-year, and continued to maintain rapid growth. Among them, export delivery value’s automobile manufacturing industry and special equipment manufacturing industry both increased by more than 20%. "China has a complete industrial system and strong supporting capacity, which can quickly adapt to changes in international market demand, and foreign export demand for industrial products in China has expanded." Fu Linghui, director of the National Statistics Department of the National Bureau of Statistics, said.

After entering March, the local cluster epidemic situation in China showed the characteristics of multiple points, wide coverage and frequent occurrence, and the supply chain of foreign trade industry chain was affected to some extent. "At present, China’s foreign trade development is under great pressure." Bai Ming, deputy director of the International Market Research Institute of the Ministry of Commerce, said that on the one hand, the impact of the COVID-19 epidemic continues, the bottleneck of the global supply chain has not been alleviated, and the shortage of important raw materials such as chips continues to plague foreign trade enterprises; On the other hand, geopolitical risks are high, commodity prices are rising, and global economic and trade recovery is facing greater uncertainty.

China has issued a series of policy measures to help small and medium-sized foreign trade enterprises improve their production and business environment, and achieved certain results.

Regional cooperation is deepening.

On January 1st this year, the Regional Comprehensive Economic Partnership Agreement (RCEP) came into effect for 10 member countries. Up to now, the number of effective members of RCEP has reached 12.

Since the entry into force of RCEP, dividends have begun to appear. Customs statistics show that in the first quarter, China’s total import and export value to the other 14 member countries of RCEP exceeded 2 trillion yuan, up 6.9% year-on-year, accounting for 30.4% of China’s total foreign trade value in the same period. Among them, the year-on-year growth rate of import and export volume with South Korea, Malaysia and other countries exceeded double digits.

Judging from local conditions, the effective implementation of RCEP has played a positive role in stabilizing foreign trade. Take Shandong as an example. In the first quarter, Jinan Customs, Qingdao Customs and Shandong CCPIT issued 24,000 RCEP certificates of origin, ranking first in the country. Shandong’s import and export volume to other 14 member countries of RCEP increased by 20.9% compared with the same period of last year.

According to statistics, in the first quarter, Chinese enterprises used RCEP to import 6.7 billion yuan and enjoy import tariff concessions of 130 million yuan; Enjoy the export of 37.1 billion yuan, and it is expected to enjoy the tariff preference of 250 million yuan from member countries.

At the same time, China’s circle of friends to build the "Belt and Road" continues to expand. Since the beginning of this year, China has signed cooperation documents with Nicaragua, Syria, Argentina and Malawi to jointly build the "Belt and Road". "Up to now, China has signed more than 200 cooperation documents with 149 countries and 32 international organizations to jointly build the Belt and Road." Meng Wei, deputy director of the Political Research Office of the National Development and Reform Commission, said.

China’s trade with countries along the "Belt and Road" has become increasingly close. In the first quarter, the import and export value of China and the countries along the Belt and Road accounted for 31.1% of China’s total foreign trade import and export value, which was 1.4 percentage points higher than that of 2021 and 6.1 percentage points higher than that of 2013.

As an important guarantee for interconnection on the "Belt and Road", the overall operation of China-Europe trains is stable and efficient, showing strong development resilience. In the first quarter, China-Europe trains operated a total of 3,630 trains and transported 350,000 TEUs, up by 7% and 9% respectively year-on-year, and the comprehensive heavy container rate was 97.7%. The monthly train volume remained above 1,000 trains for 23 consecutive months, effectively ensuring the stability of the international industrial chain supply chain.

Controlling the epidemic situation is the key to the steady growth of foreign trade

Since the beginning of this year, new changes have taken place in the characteristics of epidemic spread, but as long as we adhere to scientific epidemic prevention, we can gradually block the spread of epidemic and reduce the adverse impact on economic and social development. "If the epidemic situation in Shanghai and other places was effectively controlled in May, China’s foreign trade will continue to grow in the second quarter." Liu Xiangdong said.

"The pressure of foreign trade in the second quarter is not necessarily smaller than that in the first quarter, but the momentum of foreign trade development is still sufficient." Bai Ming believes that the long-term fundamentals of China’s economy have not changed, and the trend of sustained economic recovery has not changed. China’s industrial system is complete, infrastructure is constantly improving, the advantages of super-large-scale market are obvious, and the effectiveness of innovation-driven development is constantly emerging, which has a good foundation for promoting sustained and healthy economic development. "China’s policy toolbox for supporting foreign trade development is well stocked, and measures to stabilize foreign trade are put in place." Bai Ming said that the RCEP dividend is gradually released, and the trading partners tend to be diversified, which are favorable factors to support the steady growth of foreign trade. He also stressed that small and medium-sized foreign trade enterprises are under great pressure at present, so it is very important to stabilize market players.

"Since last year, China has implemented more active policies and measures to stabilize foreign trade and foreign investment, and has achieved remarkable results. In particular, under the premise of normalization of epidemic prevention and control, it has continued to expand trade channels, optimized trade structure, fostered the development of new trade formats, and effectively promoted the high-quality development of foreign trade." Liu Xiangdong said that in the next step, facing the new situation and challenges at home and abroad, it is necessary to comprehensively improve the pertinence of foreign trade development, focus on unblocking the supply chain of industrial chain and ensure the stability of industrial production. In view of the high fluctuation of international commodity prices, we will accelerate the diversification of supply channels. Support foreign trade enterprises to make full use of digital technology to develop new formats such as cross-border e-commerce and overseas warehouses, and effectively do a more precise job in stabilizing trade channels and markets.

"Although the international environment is complicated and severe, on the whole, the world economy is still recovering, and the demand for China’s export products will still increase. China’s export enterprises are also more capable of adapting to changes in external demand. " Fu Linghui said. (Reporter Feng Qiyu)

　　[Tracing the dispute over the hometown of celebrities]

　　Why Zhuji sent an urgent letter to Xiaoshan?

　　On February 15th and 16th, Shi Zhiban and Zhuji Municipal People’s Government of Zhejiang Province sent official letters to Zhejiang Local Records Office and Xiaoshan District Government, respectively, asking them to maintain the historical truth, and to cancel or change all the contents of Xiaoshan City Records’ false "hometown of Xi Shi".

　　What makes Zhuji people even more angry is that at the beginning of the new year in 2017, the relevant departments of Xiaoshan vigorously launched a slogan on Line 2 of Hangzhou Metro, the provincial capital: Millennium ancient town, hometown of Xi Shi, vibrant Linpu! Zhuji thinks this is a real false advertisement.

　　"On the evening of August 21st, 1959, when Chairman Mao Zedong passed Zhuji and met Sun Zifu, then secretary of Zhuji County Party Committee, on the special train, he said: Zhuji is a famous place, and beauty Xi Shi and painter Wang Mian are both here …" Comrades from the Propaganda Department of Zhuji Municipal Committee told reporters that they could not accept the "dispute over Xi Shi’s hometown" that began 30 years ago.

　　The reporter learned that in 2015, Xiaoshan City Records violated the Regulations on the Work of Local Records, and listed Xi Shi, an ancient man 2,500 years ago, as the number one biography of modern Xiaoshan City Records for the first time, and shouted for the first time that Xiaoshan was a place where Gou Jian was working hard. In 2016, Xiaoshan created a large-scale live-action musical "Xi Shi" and invited Tan Dun to invest 258 million yuan to sing "Xiaoshan is the hometown of Xi Shi".

　　This series of actions of Xiaoshan has made this debate heated up.

　　In 1986, Xiaoshan discovered that Mao Qiling, a scholar from Xiaoshan in the early Qing Dynasty, once quoted Liu Zhao’s annotation and wrote: "Yue Jue" said: Xiaoshan is the place where Xi Shi came from. " Wang Wei, a teacher in Xiaoshan, often published the article "Xi Shi came out of Xiaoshan", saying that "Xi Shi came out of Xiaoshan, which was first seen in the Book of the Later Han Dynasty". It is also believed that "Xi Shi was born in Zhuluo village in Yuedi (now Zhuluo village in Linpu, Xiaoshan)". "War" thus kicked off.

　　"According to historical records, the name of Xiaoshan County, which began in the Tianbao period of the Tang Dynasty, could not have appeared in Yue Jue Shu of the Han Dynasty. The Book of the Later Han Dynasty was written in Liu and Song Dynasties, more than 300 years earlier than the county name of Xiaoshan. According to Yuejueshu, there is no such text. It is not surprising that there are monuments of Xi Shi in Xiaoshan, because Xi Shi and Zheng Dan entered Wu from Vietnam, passing through Shaoxing, Xiaoshan, Deqing, Tongxiang, Jiashan, Huzhou, Suzhou and other places, and monuments commemorating Xi Shi appeared everywhere along the way, which some scholars call the’ Road of Xi Shi’. The’ historic site’ and’ hometown’ are completely different in nature, and the concepts cannot be exchanged to equate them. " Qi Caoliang, deputy director of Shi Zhiban, Zhuji City, told reporters that Zhuji and Shaoxing are the places where Gou Jian tried his best, and Huanjiang is in Zhuji. There has never been a Zhuluo village in Xiaoshan’s history. The present "Zhuluo Village" in Xiaoshan was formed by merging three natural villages in 2005. "Linpu has never belonged to Zhuji in history. Xiaoshan County was renamed from Yongxing in the first year of Tang Tianbao (742), and Linpu was called Linpuli as late as the Song Dynasty. "

　　Textual research on ten representative historical books at the national level and Shaoxing prefecture level before the Southern Song Dynasty, such as the Spring and Autumn Annals of Wuyue in the Eastern Han Dynasty (Xu Tianqiu’s annotation), the Records of Huiji in the Southern and Northern Dynasties, the Records of Ten Roads in the Tang Dynasty, the Notes of Taiping Yu in the Northern Song Dynasty, the Records of Jiatai Huiji in the Southern Song Dynasty and Fangyu.

　　Records of Zhuji County, which were officially edited by Zhuji officials, all have biographies and historical records of Xi Shi and Zheng Dan. There are only three Records of Xi Shi of Zhu Xi, which were officially edited by Zhuji officials in Ming and Qing Dynasties, and also include poems written by Xi Shi and Zheng Dan led by Zhu Yuanzhang, the founding emperor of Ming Dynasty. The inheritance is orderly, and there are endless books.

　　Zhuji pointed out that Xi Shi was never mentioned as a native of Xiaoshan in the Records of Xiaoshan County compiled by Jiajing, Wanli, Kangxi and Qianlong in the Ming and Qing Dynasties, and Xi Shi was not included in the biographies of county chronicles. Today’s "Xiaoshan City Records" has written Xi Shi, an ancient man more than 2,500 years ago, into a biography for the first time, which has neither inheritance nor historical basis.

　　This may be an argument that should not have happened.

　　This may be an argument that should not have happened.

　　Su Buqing, president of Fudan University, said: "The issue of Xi Shi’s birthplace has been recorded in history and verified by experts, which has long been conclusive. If you practice fraud, even if you get away with it for a while, it will be untenable in the future. "

　　In 2006, the State Council announced the first batch of national intangible cultural heritage lists, of which the tenth item was "Legend of Xi Shi" belonging to Zhuji City; In 2007, China Xishi Culture Research Center, a national regional cultural research center, was permanently located in Zhuji by the Ministry of Culture, which is a reaffirmation that Zhuji is the hometown of Xishi.

　　Successive Zhuji Municipal Party Committee and Municipal Government have done a lot of work in protecting the historical relics and cultural imprint of Xi Shi, and building Xi Shi Dian, Xi Shi Gallery, Xi Shi’s hometown scenic spot and beautiful countryside Xi Shi landscape belt. The local organization commemorates Xi Shi’s Lotus Festival every year, and holds Xi Shi Cultural Festival every two years, inviting friends, rural sages and experts at home and abroad to offer public sacrifices to Xi Shi.

　　He Jianmin, director of the Tourism Management Department of Shanghai University of Finance and Economics, said with emotion: "The dispute over the hometown of celebrities is actually a struggle for an iconic, attractive and revealing cultural tourism resource, so as to enhance the visibility of the region in the whole country or the whole city. With influence, there will be customers, which can attract investment and bring income. "

　　On the morning of 23rd, the reporter sent a message to contact Wang Zhihua, the section chief of Xiaoshan Shi Zhiban, and planned to conduct an interview on several issues: Xiaoshan said that Xi Shi’s hometown was in Xiaoshan. What is the conclusive historical basis? In the past, there was no saying in Xiaoshan local chronicles that Xi Shi’s hometown was in Xiaoshan. Why did it come up later in the new local chronicles? What is the idea that Xiaoshan started the dispute over Xi Shi’s hometown?

　　After not getting a reply, at noon, the reporter called Shi Zhiban directly in Xiaoshan, hoping to introduce and state some relevant information about the questions raised by Zhuji. However, the comrades who answered the phone declined the interview on the grounds that it was an "academic debate".

　　The reporter did not give up the interview: "At present, the two places hold their own words, but the materials provided by Zhuji are more detailed, so I hope Xiaoshan can also provide some statements. Your refusal to interview is actually a statement. "

　　Five minutes later, the reporter received a phone call from Wang Zhihua and promised to provide a "Xiaoshan statement" to the reporter. He sent the reporter an email entitled "The history of Xi Shi’s hometown has not yet been settled".

　　How should the 30-year-old debate end?

　　According to the "Xiaoshan theory":

　　In the Southern Dynasties, Liang Liu Zhao placed a bet on the "Yu Ji" in the History of the Later Han Dynasty: "Yue Jue" said: the place where Xi Shi came from. "

　　In the Northern Song Dynasty, Ouyang Yi wrote a book titled "A Wide Record of the Land" (Volume 22) and "On the Road between Zhejiang and Xiaoshan", saying: "Xiaoshan County is Benyu County, and the Han Dynasty belongs to Huiji County. At the end of the Han Dynasty, a nursery rhyme said: The son of heaven should flourish between the three southeastern regions, so Sun Quan changed his name to Yongxing County, and Jin was promoted because of it. Sui Province entered Huiji County. Tang Yifeng was reinstated in two years, belonging to Yuezhou. The first year of Tianbao was renamed Xiaoshan County. ….. The Vietnamese beauty is from this county. "

　　Zhuji believes that Xiaoshan’s statement needs to be refuted. They asked the reporter to forward the two posts of "Twenty Evidence of Xiaoshan’s Fake Hometown of Xi Shi" and "Xiaoshan’s Fake Hometown of Xi Shi Dare not Touch Six High Voltage Lines" to Xiaoshan, and asked them to carefully see if they could reply to the defense. Zhuji pointed out that the book Yue Jue Shu is a pure fraud, and it is false to check the original book. Xi Shi’s hometown is an immovable geographical coordinate. No matter how the construction evolution changes, the nature of historical sites and hometown is completely different.

　　On the evening of 23rd, the reporter sent the above two posts to Xiaoshan by email, asking them to express their views, but as of 5pm on 24th, the reporter had not received any reply.

　　"All publicity related to Xi Shi’s hometown and related contents, especially official history books, should be based on the records of previous dynasties, and should be based on national authoritative history books such as Cihai, Encyclopedia of China and Atlas of Chinese History. Xi Shi’s culture can be shared, but Xi Shi’s hometown cannot be invaded. " Qi Caoliang told reporters.

　　A scholar who has been paying attention to this matter and witnessed the whole debate feels sad: "We should spend more energy on the excavation and arrangement of Xi Shi culture, instead of turning over the history to compete for the hometown of celebrities for no reason."

　　The phenomenon revealed and reflected behind the dispute over Xi Shi’s hometown involves a series of issues, such as how to inherit China’s excellent culture, how to respect history and culture, and how to be honest in academic research. Experts suggest that the relevant departments in Zhejiang Province take the lead in organizing a seminar on Xi Shi’s hometown to solve this difficult cultural and academic problem and let all parties provide historical evidence on the spot. (Reporter Yan Hongfeng)

　　A Fang (a pseudonym) after 90 often feels tired. Last year, on the recommendation of a friend, an online consulting agency of nutrition collocation in personal tailor prepared some health products for him. "It’s a WeChat applet. It took a few minutes to do the questionnaire. According to the results, the platform gave me some health care products, including seaweed oil, vitamin E and other 5-minute pills." Five small pills a day, A Fang feels that the price is not expensive, and the first order can’t reach 700 yuan. Three months’ worth, and I haven’t finished eating for half a year. Although he didn’t see the effect of these nutritional supplements, he was psychologically satisfied.

　　A Fang’s friend left a message for the qianjiang evening news Hour reporter, trying to confirm whether this little pill is reliable or not. "Is this an IQ tax?"

　　Nutritionist’s statement:

　　The conclusion of the questionnaire is unscientific.

　　This online consulting organization of nutrition collocation in personal tailor takes WeChat as the main channel, carries out brand promotion through WeChat official account, and advertises in the circle of friends based on big data, and then uses the strong sociality of WeChat to push the brand to a wider audience. At the same time, it also opened up channels such as Tik Tok, Xiaohongshu and Tmall to capture the youth market.

　　The founder of the agency mentioned in an interview with other media that "some people can’t keep eating vegetables and exercising every day. He must smoke, drink and eat fast food in his life, then we can recommend him to take some extra vitamins with the goal of making people healthier. "

　　The reporter also spent a few minutes making a questionnaire, including topics such as eating habits and lifestyle. The questions are many and detailed, and some are indeed subjective.

　　Finally, the platform for reporter personal tailor’s plan requires five kinds of drugs, with a quantity of three months and a cost of more than 600 yuan.

　　Is the vitamin supplement obtained by this consultation reliable?

　　After reading the complete questionnaire, Lu Yanxuan, a nutritionist at the Second Hospital of Zhejiang University, said: "The questions involved in the questionnaire are quite reasonable, and there is no problem from the evaluation point of view, but the conclusions drawn through these questions are not enough evidence."

　　In other words, these surveys can’t determine what your body needs, and the conclusions drawn from them are too one-sided. For example, fatigue means that the body lacks some nutrients, which is unscientific.

　　In her view, as long as you follow the Dietary Guidelines for China Residents (2022) issued by the China Nutrition Society on April 26th, 2022, you can achieve a balanced nutrition.

　　"Many health care products, including nutritional supplements, are controversial. Whether they can prevent and alleviate diseases, there is no direct and specific conclusion." Lu Yanxi said.

　　In fact, in the usual diet, nutrients are enough. For example, vitamin e exists in our usual cooking oil; Vitamin A can be taken from meat, eggs, milk and dark vegetables.

　　Just eat reasonably at ordinary times.

　　Special people should supplement nutrients.

　　Lu Yan-fung’s conclusion is that a reasonable diet can satisfy nutrition and maintain good health, and no additional supplements are recommended.

　　For example, too much calcium intake will interfere with the absorption of zinc and iron; Vitamins A and D are fat-soluble vitamins. If they are not easily metabolized, they may accumulate in the body and even have the risk of poisoning.

　　"The dosage standard in China is different from that in foreign countries, so foreign health care products may not be suitable for Chinese." She said that even the most harmless probiotics that can regulate the intestines, everyone has different reactions to it, so you can’t blindly follow suit.

　　But some special people really need to supplement nutrients, so they can eat some properly.

　　Pregnant women, nursing mothers, young children, the elderly, etc., due to the high demand for some nutrients in special physiological periods, should often consult nutritionists, nutrition experts or doctors (hospitals, health centers) to make reasonable nutritional conditioning to ensure the nutritional needs in special physiological periods.

　　The means of nutritional conditioning include diet, nutrient supplement, reasonable exercise and other measures.

　　On the whole, Lu Yan-fung suggested that you should not eat health care products to supplement nutrients at will, and a reasonable diet can fully meet the nutrition. If you really want to supplement it, you need to supplement it scientifically and effectively under the guidance of professional doctors.

　　Changchun, China, March 11 (Reporter Guo Dongyu) How important is a good seed for food production?

　　"Good seeds, good rain and good moisture can make us look forward to a bumper harvest year." Han Fengxiang of Fenghuangshan Agricultural Machinery Farmers’ Professional Cooperative in Lishu County, Siping City, Jilin Province said.

　　"The contribution rate of excellent varieties to grain production has reached more than 45%, which plays a vital role in national food security." Zhang Zhijun, a researcher at the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　"I have a dream, buried in the soil, convinced that it is different. Light gives it hope, rain nourishes it and grows with the seeds. " Yuan Longping, the father of hybrid rice, said.

　　A small seed, one tied to the people’s rice bowl and the other tied to the national strategy (photo by Yang Guangwang)

　　This year, the No.1 Document of the Central Committee proposed that the seed industry should be revitalized in depth, the pace of industrialization of corn and soybean biological breeding should be accelerated, the pilot scope should be expanded in an orderly manner, and planting management should be standardized.

　　Recently, the reporter walked into Gongzhuling City, the founding unit of the National Modern Seed Industry Park and a national-level rice seed production county, to see how Jilin people on the black land grasped the "core" of grain.

　　Organic fertilizer "waits" for the next field (photo by Yang Guangwang)

　　In the more than 20,000 mu seed field of Hongxiang Seed Industry Co., Ltd. (hereinafter referred to as "Hongxiang Seed Industry") in Gongzhuling City, the land has been turned over and the organic fertilizer has been piled up at the edge of the field. "This seed production base was transferred last year. We used the method of black land protection to produce seeds. After a year of practice, the seed quality is very good." He Wei, general manager of Hongxiang Seed Industry, said.

　　Walking into the seed cultivation room, a fresh new green brings ying ying spring. "This is our trial variety and we are testing the emergence rate." He Wei said, "The seedlings in this germination box grew the day before yesterday, and each leaf of them contains a lot of information, which is very important for us breeders." Here, enterprises invest about 50 million yuan in maize breeding every year. "We carefully selected the seeds and planted them in the experimental field. Through the growth and yield, we found those plants with less diseases, lodging resistance and high yield."

　　A piece of new green "nurtures" the hope of a bumper harvest (photo by Yang Guangwang)

　　In addition to constantly researching and developing new varieties, how to make seeds more suitable for modern agricultural production methods is a problem that the Corn Research Institute of Jilin Academy of Agricultural Sciences is currently thinking about.

　　"At present, one of the main problems in corn production is that the level of mechanized harvesting of seeds is low. At present, the harvesting method is mechanical harvesting of ears or manual harvesting, which is not conducive to large-scale production." Zhang Zhijun, a researcher at the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　In recent years, the corn research institute of Jilin Academy of Agricultural Sciences has taken the research and development of new varieties suitable for modern production methods as its main research goal. "At present, we have cultivated Jidan 66, Jidan 436, and Jidan 81 and 82, which will be approved soon. It can be said that grain harvesting is a strong support for Jilin agriculture to take the lead in realizing agricultural modernization in the future." Lu Ming, deputy director of the Corn Research Institute of Jilin Academy of Agricultural Sciences, said.

　　Researchers overcome the difficulty of grain harvesting by machine (photo by Zhou Linhai from Yangguang. com)

　　Document No.1 of Jilin Provincial Party Committee issued this year made it clear that it is necessary to implement the project of improving corn yield per unit area. Screening and popularizing new maize varieties with density tolerance, high resistance and high yield.

　　"Every seed we develop must first ensure safety and good resistance. No matter what kind of environment, it can grow. The second is high yield, which allows farmers to increase their output after planting. " He Wei said. Hongxiang Seed Industry plans to reach the production capacity of all four design production lines as planned before 2025, meeting the production demand of 100,000 mu. "In the future, we can serve the whole park, let the seed industry in Jilin Province come back and build a spring corn processing base."

　　It is the wish of Jilin breeders to cultivate a good seed and plant a good field, and it is also the road they will always stick to.

　　Hongxiang seed industry farming field (photo by Yang Guangwang Fa Qu Liangliang)

　　As the Olympic Games in Rio de Janeiro, Brazil are coming, I would like to review the history and see which scientific and technological products that appeared in previous Olympic Games are still in use today.

　　2000Sydney 2008 Olympic Games

　　1.shark skin like swimsuit

　　For the first time in the Olympic Games, Australian star Thorpe won three gold medals in this swimsuit. Many swimmers try to enhance their competitiveness by using a "shark skin" one-piece swimsuit with a V-shaped back. Because according to the manufacturer of this swimsuit — — Speedo claims that it can increase the speed of swimmers by 3%.

　　2.Trait racing suit

　　Marion Jones in the United States and Cathy Freeman in Australia and other sprint stars use special running clothes developed by Nike. This kind of running suit is very sleek and has a hood, which can cover all parts of the sprinter except his face, hands and feet. This can keep the muscles warm and compress, and improve the sprinter’s performance.

　　3.Recycled products sports equipment

　　Steve Moneghetti, an Australian marathon runner, took part in the competition wearing shorts and vest made of recycled soft drink bottles. According to the manufacturer Nike, this material is cooler than other fabrics.

　　Olympic 100-meter champion Donovan Bailey put on special running shoes made by Adidas. It is said that this special running shoe has a hard metal plate, which can keep human toes as stiff as jaguar’s claws when running.

　　2004Athens Olympic Games in 2008

　　2008Beijing Olympic Games in 2008

　　The 2008 Beijing Olympic Games adopted a large number of world-leading new technologies, such as ground lifting stage, multimedia, ground LED system, command system, communication system and other dozens of high and new technologies, involving many fields.

　　1.Digital lamp

　　The Olympic rings rose slowly in the Bird’s Nest and flew into the vast night sky. China’s ancient painting and calligraphy scrolls slowly unfolded, showing the classical artistic conception of ink painting; On the ancient Silk Road, huge wooden boats braved the wind and waves — — These shocking visual effects are outlined by the gorgeous lights of the Bird’s Nest.

　　At the opening ceremony of the Olympic Games, more than 600 competition lights in the Bird’s Nest were all abandoned, and Zhang Yimou chose its own lighting. Science and technology have entered the digital age, and the lighting effect has also transitioned to digital lights. This new lighting effect makes the scale and imagination of the stage effect of the opening ceremony of the 2008 Olympic Games to the extreme. Digital lights are used in the 2008 Beijing Olympic Games: PG lights, that is, high-brightness projection lamp. By using the principle of optical projection and high-brightness light source, the contents on the negative are projected to the ground in full color, which can form a very visual impact picture effect at night. In the performance of the opening ceremony, the large scroll that runs through the center of the venue and the evolution animation from ancient times to modern times are successively displayed on the scroll, all of which are projected to the center of the venue by this PG lamp after pre-production. The simplicity of black-and-white contrast of China ink painting, the splendor of western oil painting and the strong color of Impressionism are all presented by this high-tech technology.

　　2.LED

　　LED (Light Emitting Diode) is a semiconductor solid light emitting device, which uses a solid semiconductor chip as a light emitting material. When direct voltage is added at both ends, carriers in the semiconductor recombine to cause photon emission and generate light. LED can directly emit red, yellow, blue, green, cyan, orange, purple and white light.

　　In the 2008 Olympic Games, LED was used to the maximum extent. The opening scroll is opened on a huge LED screen. The screen is 147 meters long and 22 meters wide. It is a huge platform with the highest scientific and technological content, with 44,000 LEDs on it. The light and shadow effects made by LED are closely combined with performances, which conjure up various patterns and introduce the audience into a fantastic world. After repeated tests, LED can completely stand the tests of stepping on by actors and flooding. Although the whole opening ceremony took a long time, the key technologies such as battery solved the energy problem of LED.

　　3.Aluminum alloy material

　　At the opening ceremony of the 2008 Olympic Games, a big hole was opened in the center of the stage, and a "earth" with a height of 6 stories and a diameter of about 20 meters slowly rose from it. Where is such a big "earth" hiding? It turns out that this "earth" is compressed underground first, that is to say, the spherical structure must be flexible. When placed on the ground, it is oval, and it will become spherical after being pulled up by the steel wire above.

　　After the ball is lifted by the lifting platform, the actor needs to perform on the vertical surface of the ball, so it needs strong stability after lifting to ensure the safety and effect of the performance. This all depends on high-tech aluminum alloy photosensitive materials, which makes the "earth" flexible.

　　4.multi-media

　　At the opening ceremony of the 2008 Olympic Games, "birds" and "whales" flew and swam freely over the huge scrolls. How did these come about? It turns out that slide projection technology was used in the opening ceremony before, but this time, all kinds of multimedia equipment were used. It can use computers to digitize media information such as words, graphics, images, animations, sounds and videos, and then integrate them into a certain interactive interface, so as to create a bowl-shaped screen of thousands of square meters at the top of the Bird’s Nest, showing a clear picture of the whale swimming freely and expressing the harmony between man and nature.

　　5.Digital ignition

　　Twenty-nine huge colorful footprints made up of fireworks opened the curtain of the 29th Beijing Olympic Games, symbolizing that the modern Olympic Games is coming towards Beijing step by step and entering the Bird’s Nest. The lighting of these 29 big footprints is controlled by computer system and digital lighting is adopted. This technology can ignite all fireworks in a short time, ensuring that fireworks can cross 3.5 kilometers in just a few seconds. In addition, there are 22 launching points in the dragon-shaped water system next to the Bird’s Nest. After digital control by computer, all fireworks bombs can shoot into the sky one after another, making the fireworks look like a flying dragon. Although traditional fireworks are still used, after digital ignition, fireworks show different visual effects from the past.

　　2012London 2008 Olympic Games

　　1.Photographic robot

　　Getty Images, the official photo agency of London Olympic Games, installed photographic robots in some Olympic venues, which can realize remote control and 360-degree rotation. According to the NBC report, "photographic equipment can be hidden in flashlights, rafters and scaffolding, and placed in and around the Olympic Games, which can play the most important role in places where photographers can’t reach because of distance and safety reasons."

　　2.A more attractive voice

　　It is reported in the Atlantic Monthly that most of the voices heard on TV during watching the Olympic Games are not true. Some sounds were not recorded at the game site, at least in this sense, it is not true. Some audio is recorded in advance under optimized conditions and then used for TV broadcast. The website of Atlantic Monthly also cited an example of the Olympic archery competition. An Olympic audio engineer said that the sound was based on the sound he heard in the movie Robin Hood. He used a special microphone to collect the sound on the ground between the archer and the arrow rake. It is said that this method produces a sound that no one can actually experience at the scene.

　　3.Double runway

　　The runway of the main stadium of London Olympic Games has adopted a brand-new surface, which means that track and field athletes do not need to wear spikes to participate in the competition. According to the BBC, "Other runways are designed with rubber particles on the top floor, which combines the traction and shock absorption. Different from the past, the runway designed by Mondo separates these functions into two layers. The bottom layer is padded, which can cushion and shock absorption, and the top layer is durable, which can maximize the skid resistance, adhesion friction and durability. " This design makes it unnecessary for athletes to wear spikes on the track.

　　4.artificial limb

　　South African athlete Oscar Pistorius, who has nicknames such as "Oscar Pistorius" and "the fastest legless man in the world", became the first athlete to use artificial limbs to participate in the Paralympic Games. After a controversy over whether artificial limbs should be allowed to participate in the Olympic Games, Pistorius used special carbon fiber artificial limbs to participate in the 400-meter and 4×400-meter relay races.

　　5. Athletes who put data first

　　London Olympic Games is a "digital Olympics". Many athletes use sleep tracking devices and motion capture systems to understand their physical condition more accurately. According to the Financial Times, some companies dealing in biometric instruments also deal with athletes to participate in data collection to improve the performance of gadgets.

　　6.Virtual bicycle

　　Although it is thousands of miles away from London, Australian cyclists have been training in London cycling track by using virtual reality technology. In a video of the Australian Broadcasting Corporation explaining the technology, it can be seen that cyclists are looking at a screen that looks like a video game, which is actually an environment that is completely simulated according to the London Olympic Road Cycling Stadium. Each training bicycle is fixed in the Australia Institute of Sport, but it is equipped with a screen, a GPS and some ranging tools. This system can also collect the training data of athletes, and the coach can clearly know their time-consuming, speed, energy and riding distance.

　　7.start detection system

　　Omega, the official timer of the Olympic Games, brought a new starting equipment to swimming and track and field events in London Olympic Games. The track starter is fully electronic for the first time. It is said that the technology in the 1970s required athletes to push the starting device 5 mm to start. Now, swimmers start to light up directly to show who is in the first place, who is in the second place and who is in the third place.

　　8.Kick sensor

　　Originally, the Olympic Games may cancel the Taekwondo competition, but technically recording the strength and accuracy of kicking may save the event. Zhao Zhengyuan, president of the World Taekwondo Federation, said in an interview: "I think Taekwondo will really benefit from technology, because it can ensure that medals will be awarded to the best athletes and will not be awarded to others because of misjudgment by the referee. This is an excellent opportunity for us to stay in the Olympic Games. There are few competitions with this technology, which will help to eliminate human errors in taekwondo competitions. "

　　9.Digital housekeeper

　　Being selected for the Olympic Games is not only a proof of strength for an athlete, but also a supreme honor. Can the organizers of the Olympic Games use the power of science and technology to help athletes concentrate on the competition and eliminate their worries in life? Atos, the digital partner of the London Olympic Games, did just that. Atos Company established an identity information system for nearly 15,000 athletes who participated in the Olympic Games and Paralympic Games. The athletes who were included in the system were equivalent to obtaining a certification label, which made it easier to obtain visas and a series of preferential policies. Atos Company has also compiled a supporting application, so that athletes can log in to their identity accounts through their mobile phones, tablets or computers on weekdays. The account will contain a lot of information including the competition schedule, training plan and competition results, which is equivalent to providing a "digital housekeeper" for each participant.

　　10.Reduce the burden on runners

　　As a space power, the United States has also applied its own space technology to the preparations for the Olympic Games. Shannon Rowbury, a well-known American long-distance runner, unfortunately suffered from an injury and her femur was damaged. However, with the help of space science and technology, she only rested for six weeks after diagnosis and resumed training. Robery uses a set of AlterG anti-gravity running assistant device, which allows the trainer to train with at least 20% of his own weight, and the physical burden of the athlete will be greatly reduced. The principle of this treadmill is to pump air into the air bag around the runner’s waist. When the air pressure in the air bag rises, the runner will be lifted and the weight load will be reduced. Athletes can reduce their weight by up to 80% simply by pressing the up/down buttons in the panel.

　　11.Team overall data analysis

　　For cyclists, the wind tunnel laboratory is their loyal scientific and technological partner. The data analysis in the wind tunnel laboratory can help athletes optimize training programs, adjust training methods, and improve their performance by using aerodynamic scientific and technological achievements. But for a long time, the analysis of wind tunnel laboratory can only serve an athlete on a personal basis. Researchers at Monash University in Australia have improved an experimental device used to test airplanes and cars, enabling it to collect data of athletes for analysis. More crucially, this machine has crossed the barrier of analyzing individuals before, and can analyze the data of the whole bicycle fleet at the same time. In this way, the coach can make a training plan for the whole team according to the analysis results and find ways to improve the team’s performance.

　　12.Red BullXplan

　　Although an athlete participates in the Olympic Games alone, he represents more than just him. Behind the athletes, there is a team of coaches who support his motherland and train for him. Lolo Jones, an American hurdler, participated in the Red Bull Project X. She once said in a video: "I’m not fighting alone". The video shows the whole team behind Jones: a coach, a director, a manager, a sports scientist, a coaching consultant and a physiology consultant. Such a rich and powerful work team is naturally not busy in vain, they use the most cutting-edge technology.

　　The Red Bull X project uses a 3D digital analysis system, which can do many things that humans can’t. Plan X is divided into three parts — — Vicon 3D tracking system, optical measurement system Optojump Next and data acquisition tool Phantom Flex Camera. The three technologies complement each other, which can not only give a macro evaluation of athletes’ performance, but also disassemble every minute of training competition into countless tiny fragments for analysis.

　　Jones’s team made 39 reflection marks on her body. With these marks, 40 Vicon T40S motion capture cameras capable of shooting 2000 frames per second will track all her movements. Optojump Next, an optical measurement system, will decompose every jump of Jones into contact time, flight time, height, hurdle rhythm, specific energy, specific power, total energy and total power. Finally, Phantom Flex Camera, a top camera capable of shooting 10,750 frames per second, will record Jones’ every minute with images.

　　"If technology can help an athlete perform better, then this system can benefit everyone." Jones’s average hurdle time is 12.5 seconds, which she believes is largely due to the help of the team and technology behind her.

　　13.Real time feedback device

　　Good results in the competition will be cheered by the audience and graded by the referee. However, in training, how do athletes know their performance? Jonathan Green, composer, sound engineer and Gregory Sporton, dancer of the Visualization Research Unit at the Birmingham Institute of Art and Design in Birmingham, England, developed a feedback system called Motivepro. The original intention of this system is to provide real-time action feedback for dancers. Dancers are required to wear a series of sensors, and their movement information will be collected by Motivepro. Once the wearer’s physical activity exceeds the preset range, the vibrator in the device will vibrate to remind him.

　　Mimi Cesar, a rhythmic gymnast, found that this system can also be applied to rhythmic gymnastics similar to dance. For rhythmic gymnastics, the synchronization of the team is particularly critical. Motivepro system can give a reminder when an athlete’s movements are out of step, and can also collect sports information for the coach to analyze. With this system to help train, will the cooperation of the whole team be more tacit?

　　14.Brand-new pool take-off platform

　　The 2012 London Olympic Games used a brand-new upgraded swimming pool jumping platform in swimming competition. The platform was designed and manufactured by Omega. Compared with the previous take-off platform, the progress is that it has an adjustable inclined pedal certified by patent, which makes the athlete’s hind legs bend into a 90-degree angle when taking off in a squatting manner, which is considered to be the most suitable take-off posture. The new take-off platform is also equipped with a brand-new sensing system. This sensing system can ensure that athletes can hear the whistle at the beginning of the game at the same time, which can effectively avoid unnecessary mistakes of athletes. At the same time, the newly upgraded swimming pool take-off platform in Shanghai is equipped with a signal light system called "Swimming Ranking Indicator". At the end of the competition, the swimming lanes that won the first, second and third place will be marked on the take-off platform by different light spots, so that the audience can see at a glance.

　　15.Advanced drug testing equipment

　　GlaxoSmithKline is at King’ s College next to the Olympic Park. S College) has set up The Science Centre to serve the Olympic drug testing. During the Olympic Games, the center worked 24 hours a day, monitoring more than 6,000 urine samples and blood samples every day. After each competition, all the medal winners and the remaining half of the randomly selected contestants enter the center for illegal drug testing. The tested samples are divided into two parts, A and B, and A is stored for eight years for future more advanced scientific and technological testing; B was sent to the drug testing center. The drug testing center can check 70 illegal drug ingredients in one test, and each sample will be tested here for a total of 240 illegal drug ingredients. It can be seen that the fair conduct of the Olympic Games has a strong technical guarantee.

　　16.Electronic medical records

　　General Electric (GE) Medical Company provided an electronic medical record solution for the 2012 London Olympic Games, which made it possible for doctors and athletes to make medical records accessible through the Internet. The electronic medical records covering more than 700 participants were made in 90 days after the countdown to the London Olympic Games. At the same time, GE Medical Company also installed medical diagnostic equipment in the Olympic Park as a supporting facility for the whole set of electronic medical records.

　　17.Top medical logistics

　　During the Olympic Games, more than 16,000 Olympic athletes and more than 6,000 Paralympic athletes living in the Olympic Village will be fortunate to receive top-level medical logistics support. The latest version of super-large magnetic resonance imaging instrument, ultra-high-definition CT instrument, wireless digital X-ray detection system, upgraded ultrasonic detector and ECG detection equipment specially designed for the Olympic Games provided by GE Medical Company have all opened the eyes of medical volunteers for the Olympic Games. These equipments will not be removed after the Olympic Games, and they will continue to serve in this land that bears cheers and sweat.

　　2014Winter Olympics in Sochi in

　　Snow making: snow cannon

　　Snow making machine is a brand-new snow making system, which forms ice on an evaporator at -15℃ and sends it to ski slopes through cooled air. Due to the climate, Beijing and Zhangjiakou host the Winter Olympics, and a large number of snow making equipment will be used. Funa machine is not affected by climate, so long as it can keep a certain amount of water, it can make snow.

　　At the Sochi Olympic Games, the venue was really unfortunate — — Sochi is one of the warmest regions in Russia. In order to ensure that there is enough powdery snow to support the competition, Russian organizers use snow cannons to shoot a large number of artificial snowflakes. According to the news released by The New York Times, about 230 million gallons of water were used to make snow in this competition, and the snowfall covered an area of about 1,000 football fields.

CCTV News:Regarding the economic data released by China in the first quarter, multinational experts said that the economic data of China in the first quarter was better than market expectations, which indicated that China’s economy was making great strides, and China’s economic prosperity and development not only benefited China, but also benefited the whole world.

Surab Gupta, a senior researcher at the Center for Sino-American Studies in the United States, said that China’s GDP in the first quarter increased by 4.5% year-on-year and 2.2% quarter-on-quarter, which is a good sign that China’s economy is making great strides, and China will have a bumper harvest year in 2023.

Surab Gupta, Senior Researcher, Center for Sino-American Studies, USA:What we are seeing now is that China is striding forward, and the economic development speed is faster than the market expectation. Frankly speaking, I think China’s economy will soon reach the speed of take-off. In terms of economic growth, 2023 will usher in a bumper year.

Vitol Gaspar, director of the Financial Affairs Department of the International Monetary Fund, said that China’s economy has maintained growth not only because it can adapt to the needs of development and carry out transformation, but also because it insists on the effective combination of expanding consumption and deepening supply-side structural reform.

Vitol Gaspar, Director of the Financial Affairs Department of the International Monetary Fund:I think that China has a very strong growth record in the past 45 years, and China has proved that rapid growth and development are extremely important, and it has indeed lifted hundreds of millions of people out of poverty. With the continuous expansion of China’s scale in the world economy, it is very important for China to give priority to the growth of domestic resources, which shows Chinese’s intelligence.

David Falstein, president of the George Bush Foundation for US-China Relations, said that China’s economy started well in 2023, which benefited from the reform and opening-up policy, and China’s economic achievements were also conducive to global economic development.

David Falstein, President of George Bush Foundation for US-China Relations:Under the reform and opening-up policy, China has obviously achieved success. From the economic point of view, China has been on the right path for a long time, and China has been creating prosperity, improving living environment and improving material conditions. I think it is in the interest of China and the global economy to continue on this path.

In the new energy vehicle market, the brand of Wenjie has gradually won the recognition of consumers by virtue of its technology and performance, but its design has become a hot topic among netizens. In particular, the design of M7 and M9 has been pointed out by many commentators that it is too high similar to other brands, which affects the uniqueness of brands and consumers’ willingness to buy to some extent. However, with the news of M8, it seems that Huawei has listened to the voice of the market and taken action.

The design team of Wenjie M8 has undergone a major transformation, aiming at creating an SUV with a more attractive appearance. The latest renderings show that the appearance design of the M8 is significantly different from the previous model, showing a more sporty and fashionable atmosphere, while incorporating futuristic elements. The front of the car uses a penetrating LED daytime running light, with a split headlight design, and the vertical light group below enhances the recognition of the car.

The side of the car body is simple and powerful, and the dense spoke rims add a sense of luxury, while the smooth window lines further enhance the overall elegance. It is reported that the positioning of the boundary M8 will be between M7 and M9, and the body size is expected to be between the two accordingly.

In terms of price, the M8 is expected to be located in the price range of M7 and M9. Considering the price of 249,800-329,800 yuan and the price of 469,800-569,800 yuan, it is estimated that the starting price of M8 may be more than 300,000 yuan, and the top version may be close to 400,000 yuan. This pricing strategy can not only avoid direct competition with M7, but also won’t occupy the market space of M9.

Although the rendering provides us with a general idea of the appearance of the M8, there are also some details that are not completely consistent with the previously exposed road test spy photos, such as the design of the door handle. The rear part continues the style of M9, and the through taillight has a "Xi" pattern, which implies its programmable characteristics.

In terms of power system, the M8 is expected to be available in both pure electric and pure electric versions, and its performance parameters are expected to be similar to M9, including strong power output and all standard air suspension.

Referring to the M9, its car model is 496PS/675Nm, which broke 100 in 4.9 seconds, and the CLTC pure electric cruising range is 225Km and 275Km. The pure electric vehicle model is the book data of 530PS/673Nm, which broke 100 in 4.3 seconds. The CLTC pure electric cruising range is 630Km, and the whole system comes standard with air suspension.

↑ Ask the interior real shot of M8 exposed.

As for the interior, the M8 follows the design of M9, and is equipped with a "triple screen" consisting of a 12.3-inch LCD instrument panel, a 15.6-inch central control screen and a 16-inch passenger entertainment screen, and a high-order intelligent driving system, which reflects Huawei’s technical strength in intelligence.

Generally speaking, the biggest highlight of the M8 is its brand-new design, which will greatly enhance its recognition and attractiveness in the market. With the disclosure of more information, we look forward to asking M8 to achieve better sales results in the future market.

　　The key to building a socialist modern country in an all-round way and promoting the great rejuvenation of the Chinese nation lies in the party, the key lies in people, and in the final analysis, the generation after generation of loyal and reliable young cadres who can shoulder heavy responsibilities hold the "baton" in the new era. Recently, "Qiushi" magazine published an important article by the Supreme Leader General Secretary, "Strive to grow into a pillar talent who is loyal and reliable to the party and the people and worthy of the heavy responsibility of the times", focusing on major issues such as how young cadres grow into talents and who to start businesses for, and profoundly expounding from six aspects, and putting forward clear requirements for young cadres. As a Selected Graduates, I deeply feel the arduous responsibility and glorious mission, and I am also excited to have a broader grassroots world to display my talents, and I am more determined to grow into a new era Selected Graduates worthy of the heavy responsibility of national rejuvenation.

　　Build a solid foundation of belief that "politics is the first and loyalty is the most important".The party’s political construction is a fundamental, fundamental and overall issue concerning the direction, future and destiny of the party and the country. Talking about politics is the most basic and important standard and principle to measure a cadre. In the new era, Selected Graduates should take a clear-cut stand on politics, enhance its political position, strengthen its political responsibility, strive to improve its political judgment, political understanding and political execution, constantly temper its loyal and reliable political character to the party and the people, deeply understand the decisive significance of the "two establishment", constantly enhance its "four consciousnesses", strengthen its "four self-confidences", achieve its "two maintenance", and closely combine its personal ideal with Socialism with Chinese characteristics’s common ideal to achieve lofty ideals.

　　Practice the excellent skills of "solid theory and strong practice".Selected Graduates, from the campus to the society, from the organs to the grassroots, is unfamiliar with the actual situation of the village community and lacks experience in dealing with residents, so it is urgent to master the methods of mass work. It is necessary to strengthen theoretical study, strengthen theoretical foundation, and learn to observe, study and solve grassroots problems with the Party’s innovative theory. Consciously use the party’s innovative theory to guide practice and promote work, be good at summing up experience and grasping laws in grass-roots work and practice, and pay attention to strengthening tempering and increasing skills in peacetime work. Be willing to be a "primary school student", learn from the masses, strengthen investigation and research, and constantly improve comprehensive quality and work ability in dealing with various grassroots problems.

　　Always keep the enterprising attitude of "starting a business and bravely shouldering heavy burdens".As an outstanding representative of young people, Selected Graduates should take the initiative to do something, not despise trivial matters at the grass-roots level, not be afraid to avoid major events and difficulties related to development, be brave in "volunteering", dare to "ask for trouble" and get rid of "being superior to others"; We must be brave enough to take on heavy tasks, dare to wade through dangerous beaches, rapids and reefs, take the initiative to fight for the heaviest burden, gnaw at the hardest bones, and practice "hard and wide shoulders" in pioneering and forging ahead; We should do good deeds and make achievements, establish the value orientation of "reactive power is excessive, mediocrity is wrong", resolutely attack perfunctory and confused work, make everything closed-loop and effective, strive to grow into a "sharp soldier" who can do things, know how to do things and get things done, and contribute Selected Graduates’s strength to writing the grass-roots chapters of Chinese modernization. (Author: Xue Cheng)

    On November 15th, the national launch of the third generation power station of Easy Connect was held in Hangzhou, marking another solid and important step for Easy Connect in the field of automobile power exchange. The third-generation power station of Yiyi Interconnection has made greater breakthroughs in the aspects of "power exchange speed, power exchange reliability and power exchange safety guarantee", which also indicates that the operating market is welcoming the "power exchange outlet".

   The power exchange mode is a "potential stock", which will effectively complement the charging mode.

    As one of the important ways to replenish energy for new energy vehicles, the power exchange mode has always been an important direction to promote new energy infrastructure construction. In October, 2021, the Notice on Launching the Pilot Work of the New Energy Vehicle Switching Mode decided to launch the pilot work of the new energy vehicle switching mode application. There are 11 cities included in the pilot scope, including 8 comprehensive application cities (Beijing, Nanjing, Wuhan, Sanya, Chongqing, Changchun, Hefei and Jinan). In July 2023, "Several Measures on Promoting Automobile Consumption" proposed to speed up the popularization, application and construction of the power exchange mode.

    Although the current mainstream market for new energy vehicles is charging, according to market research and analysis of relevant experts, the mode of replacing electricity also has huge market potential and industrial expansion space.

    In the future, changing electricity will inevitably become one of the most important ways to replenish energy in the new energy vehicle market, and it is a "potential stock" for industrial upgrading, which will effectively complement the charging mode.

    "Easy Connect Technology Co., Ltd.", a subsidiary of Geely Automobile Group, is a firm practitioner and active promoter of automobile power exchange mode. In January 2017, the R&D team of power exchange technology was set up; In September 2020, the Chongqing Exhibition Station was completed, and the power exchange mode was released for the first time; In January 2021, he won the "Golden Intelligence Award of the Year" in the third China Automobile Golden Coconut Award; In September 2021, as a new power for power exchange, it appeared at the Beijing New Energy Automobile Industry Development Achievement Exhibition; In October, 2023, the brand vision was released: to build the first brand in the operation market.

   Create the industry’s first smart electricity exchange ecological platform and become a "strength school" for big travel.

    Easy Internet has been deeply involved in the power exchange industry for more than 6 years, and has accumulated leading industry experience. It has more than 1,000 R&D personnel and invested more than 1 billion yuan. It has thousands of technical patents in the power exchange fields such as "power exchange architecture, power exchange station, standardized battery pack, power exchange vehicle, and station control cloud platform", and has issued more than 30 related standards for power exchange, and its reliability verification test has exceeded 300,000 kilometers, making it the first in the industry to have "complete vehicle-battery".

    According to Yang Quankai, president of Yiyi Internet Technology Co., Ltd., Yiyi Internet’s third-generation power station has the advantages of "high modularity, high compatibility, high intelligence, high service capacity and high security", reshaping the new experience of replacing electricity and replenishing energy.

    (1) High modularity: The power station adopts a highly integrated modular design concept, which can increase or decrease the number of boxes according to the service capacity, realize rapid disassembly, strong reproducibility and rapid deployment, and can stop at the station within 24 hours at the earliest. The single station of the power exchange station covers an area of 120-200m2, with small floor space and high efficiency ratio.

    (2) High compatibility: the unique open power exchange platform architecture can achieve multi-vehicle compatibility and achieve wheelbase bandwidth coverage of 2700-3100mm. It has opened customized service for vehicles to the market, promoting the coordinated development of technology and the promotion of power exchange technical standards. The adaptive ambient temperature range of the power station is-30 ~ 55 C, which can adapt to the low temperature weather in most northern winters.

    (3) High intelligence: the intelligent temperature control system under all-weather conditions has the characteristics of constant temperature and slow charging, dynamic inspection, etc., which ensures the intelligent control of the whole charging environment, realizes the interconnection of vehicles, stations and cloud platforms, and realizes integrated operation.

    (4) High safety: The power exchange station has a three-level fire protection system, and 24-hour cloud monitoring is implemented for the power exchange battery by using 5G technology, and the battery life is prolonged by constant temperature and slow charging. Seven-layer safety measures are adopted to ensure the safety of the battery and the power exchange station, and advanced locking mechanism design has established a safety barrier in the whole process of power exchange.

    (5) High service capability: With the intelligent power exchange management system, the automatic power exchange operation can be unmanned, and the whole process takes less than 1.5 minutes (the mechanical power exchange part can be completed in 40 seconds at the earliest), and the number of power exchanges in a single station is ≥540 times a day, saving 1-2 hours for drivers in each shift. The annual power exchange capacity of a single station can reach 7 million kWh, and the annual revenue of a single station can reach 10 million yuan.

    In the next three years, Yiyi Interconnect will operate 2,000 power exchange stations nationwide, and unite the efforts of all parties to provide high-quality power exchange and energy replenishment services for drivers, making power exchange faster than refueling; At the same time, E-easy Internet will also launch power exchange and energy replenishment solutions that specifically match the operating market, and build the first brand of power exchange and energy replenishment in the operating market. Up to now, Yiyi Interconnect has deployed and operated over 300 power stations in more than 30 cities including Chongqing, Hangzhou, Guangzhou, Chengdu, Tianjin, Jinan, Xi ‘an and Shenyang. The number of power changes per day exceeds 20,000 times, and the power change per day exceeds 600,000 kWh, and the operating data is growing steadily.

    At present, there are "Cao Cao 60, Maple Leaf 80v, Maple Leaf 60s, Ruilan 9, Ruilan 7, British TX5" which can be used for power exchange in the power exchange station of Easy Connect. More automobile brands are developing power exchange models and joining the power exchange system of Easy Connect one after another.

    Change the electricity to the windward port, and the break is in the present. As an important part of the new energy vehicle industry, the development of power exchange mode is of great significance to promote the popularization and application of new energy vehicles. With its long-term accumulation of outstanding technical strength and strategic layout of the operating market, Easy Internet is bound to lead the industry trend and help the industry upgrade.

　　People’s Daily Online, Beijing, May 13 (Yang Xi) Recently, the release of the main data of the seventh national census has aroused great concern from all walks of life. Some netizens found that the trend reflected by the census data published this time is inconsistent with that published in non-census years, so they raised some questions about individual data.

　　In this regard, the National Bureau of Statistics answered the above questions and related questions of population statistics.

　　How to count and publish population data?

　　At present, China’s demographic survey mainly has three ways:

　　The first is the national census, which is conducted once every ten years in the year when the mantissa meets "0", and the census data is published in China Census Data.

　　The second is the national 1% population sampling survey, which was conducted in the year when the mantissa met "5", and the survey data was published in the National 1% Population Sampling Survey Data.

　　Third, the national sample survey of population changes, the sample size accounts for about 1&permil of the total population; In addition to the census year and the sampling year of 1% population survey, it is conducted once a year, and the survey data are published in the Statistical Yearbook of China and the Statistical Yearbook of Population and Employment of China.

　　The main statistical indicators of the above three types of population data will be published in the annual data in the database of the National Bureau of Statistics.

　　Why is the trend reflected by census data inconsistent with that published in non-census years?

　　The population in non-census years is calculated according to the sampling survey data of that year. Due to the missing rate of sampling surveys in some years, there will be some deviations in the estimated population as a whole, and these deviations will continue to accumulate with the passage of time.

　　Carrying out the population census once every 10 years can comprehensively find out the number, structure and distribution of China’s population, let us know more clearly the development of China’s population in the past 10 years, and provide extremely valuable data for better studying population issues and formulating population-related policies.

　　So how to deal with this inconsistency? According to international practice and common practice, after the census, the annual data published between the two censuses are generally revised according to the census results, so as to reflect the population development track more truly and objectively. In the sixth national census and the just-concluded fourth national economic census, historical data were also revised according to census data. At present, this work is in progress, and the relevant data will be released on schedule after the revision is completed.

　　Is the population statistics based on household registration or residence?

　　At present, China’s population census and population survey are counted and summarized according to the resident population. The time standard for judging the permanent population is half a year, and the space standard is township, town and street.

　　The resident population is an important basic data for formulating the national economic and social development plan, evaluating the national economic production capacity, and evaluating the welfare level of residents. It has a wide range of applications, such as financial expenditure, urban construction, housing construction, allocation of public facilities, education investment, medical investment and public utility investment, etc., which need to be planned according to the size of the resident population.

　　The registered population refers to the registered population in a certain area, regardless of whether they go out or not, as long as they register their permanent residence in the public security household registration management department. The data of registered population is counted by the public security department. For a long time, China has established a set of perfect household registration statistics and management system, which has played an important role in social management.

　　How is the floating population data counted?

　　Floating population refers to the population whose residence is inconsistent with the township street where the household registration place is located, and who has been separated from the household registration place for half a year or more (excluding the separation of households within the municipal area). The survey indicators used to judge and reflect the floating population include: the place of registration, the place of residence at the time of investigation, the time of leaving the place of registration and the reasons for leaving the place of registration. The National Bureau of Statistics formulates a demographic survey system according to the Statistics Law of the People’s Republic of China, conducts demographic surveys on a regular basis, and publishes major demographic data such as permanent population, birth population, dead population, urban and rural population and floating population.