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China's top 10 scientific and technological achievements in 2019

Original title: Top 10 scientific and technological achievements of China in 2019: Several firsts, making history

4hw.com.cn reviews China's top 10 scientific and technological achievements in 2019: several "firsts", making history! In 2019, scientists have made a little more achievements in hard core science and technology: chang'e-4 sends back the first image of human moon back, which is the first landing on the moon, and also opens a new chapter of China's scientific and technological breakthroughs; the Ministry of industry and information technology issued 5g license; the first flight of jielong-1 was successful; the Chinese Academy of Sciences discovered the largest black hole so far; and; Huawei releases Hongmeng operating system & hellip; & hellip;

Top 10 scientific and technological achievements in China in 2019

The year 2019 marks the 70th anniversary of the founding of the people's Republic of China. With 70 years of hard work, China is now in a position to go from two bombs and one satellite to manned spaceflight, from the lunar exploration project to the Fuxing spacecraft, which can reach the moon in nine days and catch turtles in the five oceans. In the magnificent year of 2019, China has made a lot of achievements in the field of science and technology, and the Chinese people who have worked hard have accomplished a number of remarkable achievements.

In 2019, scientists have made a few achievements in hard core science and technology: chang'e-4 sent back the first image of the back of the moon, which is the first time for mankind to land on the moon's back, which also opened a new chapter in China's scientific and technological breakthroughs; the Ministry of industry and information Technology issued 5g license; the first flight of jielong-1 was successful; the Chinese Academy of Sciences discovered the largest black hole; Huawei released Hongmeng operating system & hellip; & hellip;

What are China's top 10 scientific and technological achievements in 2019?

1. At 10:26 a.m. on January 3, 2019, the chang'e-4 probe successfully landed in the pre selected landing area near 177.6 E and 45.5 s on the back of the moon, and transmitted the world's first close-up image of the back of the moon through the magpie bridge relay satellite, revealing the mystery of the ancient moon back. This is also the first country in the world to successfully complete soft landing on both the front and back of the moon after the successful landing of chang'e-3 in 2013.

2. At 8:55 a.m. on November 23, China successfully launched the 50th and 51st Beidou navigation satellites with the long march 3B carrier rocket (and the supporting expedition-1 upper stage) at Xichang Satellite Launch Center. This is also the 319th flight of the long march series launch vehicles. It is worth mentioning that as of the end of June, GPs had only 31 satellites in orbit. As for the other two navigation systems, the EU's Galileo has 22 positioning satellites, Russia's GLONASS has 24, Japan has four regional quasi zenith satellites, and India has only six.

3. At 9:00 am, the large-scale passenger plane of c91105 left for Shanghai International Airport at 9:00 am. It is reported that 105 aircrafts are mainly responsible for brake parameter adjustment, fluid drainage, power supply, fire prevention, environmental control and other flight tests, as well as special flight tests of high temperature, high humidity and high cold.

4. At 11:28 on September 25, President Xi stepped onto the rostrum of the commissioning ceremony in the joint inspection Hall of the airport and solemnly announced: "Beijing Daxing International Airport is officially put into operation!" the audience immediately burst into warm applause. From 16:23 on the same day, seven large airliners from seven domestic airlines successively took off from Beijing Daxing International Airport and went to Guangzhou, Shanghai, Chengdu, Yan'an, Hangzhou, Fuzhou and Xiamen, marking the official opening of Beijing Daxing International Airport.

5. On the morning of October 1, in the grand military parade marking the 70th anniversary of the national day, dongfeng-41 nuclear missile team made the final appearance among 32 equipment teams. This is the first public appearance of dongfeng-41 nuclear missile. At the same time, the commentary broadcast on TV said: "strategic checks and balances, strategic control, strategic decisive, dongfeng-41 intercontinental strategic nuclear missile is the mainstay of China's strategic nuclear power!"

6. On November 17, China's first and second domestic aircraft carrier successfully passed through the Taiwan Strait to carry out scientific research and routine training in the relevant waters of the South China Sea. It is reported that the first domestic aircraft carrier left Dalian shipyard on the morning of November 14 for the ninth sea trial in five days. On November 19, the first domestic aircraft carrier sailed into Sanya military port, announcing the successful completion of its first voyage.

7. At about 22:00 pm on September 30, the UHV Guquan converter station under the night curtain in southern Anhui Province was in full swing for commissioning. "All start-up test items of ultra-high voltage Guquan station system commissioning have been completed, and the test results are correct!" the commissioning commander-in-chief reported, and a row of exhaust fans on the converter transformer immediately turned.

8. On March 12, Tiankun, Asia's largest heavy self-propelled cutter suction dredger, completed customs clearance procedures and started its first voyage from Lianyungang, Jiangsu Province. This marks that the "Tiankun" dredger, which is completely independently developed and built by China, is officially put into operation. Tiankun is an upgraded version of the largest cutter suction dredger in Asia. It is 140 meters long, 27.8 meters wide and 35 meters deep. The total installed power is 25843 kilowatts. The designed dredging capacity is 6000 cubic meters per hour. The rated power of the cutter is 6600 kilowatts. It is the largest and first imported cutter suction dredger in Asia and the highest intelligent self-propelled cutter suction dredger in the world.

9. On September 25, with the completion of the precise connection of 473 tons of steel truss girder, which was called "the most difficult road under construction in the world" by bridge experts, the guyumen channel bridge of Pingtan Strait was successfully closed, marking the opening of the world's longest and China's first cross-strait highway and rail dual-purpose bridge.

10. On September 26, the naming ceremony of semi submersible drilling platform 'Lanjing 2' was held in Yantai. After the ceremony, blue whale 2 will leave Hong Kong for operation. Blue whale 2, designed and built by CIMC raffles, is a semi submersible drilling platform with the deepest operation depth and drilling depth in the world. The drilling platform has a water depth of 3692m, a maximum depth of 1525 meters, a maximum depth of 1525 meters, a maximum depth of 1525 meters, and a maximum depth of 1525 meters.