On January 3, 219, Chang 'e IV successfully landed in the pre-selected landing area on the back of the moon, and sent back the world's first close-up image of the back of the moon through the "Queqiao" relay star. This mission realized the first soft landing of the human probe on the back of the moon and unveiled the mystery of the ancient back of the moon for the first time.
2. The first launch of the rocket at sea was successful
On June 5, 219, China successfully put the technical experimental satellites A and B of Fengshou-1 and five commercial satellites into the predetermined orbit with the Long March 11 launch vehicle in the Yellow Sea, and the test was successful. This is the first time that China has carried out the launch technology test of the launch vehicle at sea.
3. Beijing Daxing International Airport has achieved many world firsts
On September 25, 219, Beijing Daxing International Airport was officially put into operation. Daxing International Airport covers an area of 1.4 million square meters, with the largest single terminal building in the world, the most difficult terminal building in the world, the largest isolation bearing terminal building in the world and the largest integrated terminal building without structural joints in the world.
4. Leading the field of communication technology for the first time
In p>219, the curtain of 5G was steadily opened in China, and some 5G standards customized by many Chinese enterprises became international standards. Statistics show that in the global ranking of the number of necessary patent applications for 5G standards, Chinese enterprises account for more than 3%, ranking first in the world.
5. The tonnage of warships launched ranks first in the world
In p>219, China's warships launched 9 destroyers, 1 integrated supply ship, 1 integrated landing ship, 1 amphibious assault ship and 12 light frigates, with a displacement of 2, tons, surpassing the United States, which launched 15, tons, ranking first in the world.
6. The total operating mileage of high-speed rail ranks first in the world
On December 3, 219, the Beijing-Zhangjiakou high-speed rail (including Chongli Railway), Zhangjiakou-Datong high-speed rail and Zhanghu high-speed rail Zhangjiakou-Wulanchabu sections were officially opened for operation. By December, 11 high-speed rail lines in China had been put into operation, with a total operating mileage of 35, kilometers, ranking first in the world.
7. The number of space launches ranks first in the world
By December 3, 219, major space countries and entities such as China, the United States, Russia and Europe had carried out more than 1 space launches, making the number of launches in 219 exceed 1 for the second consecutive year after 218. China ranked first in the global space launch list with 34 space launches.