日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

First man-made satellite

Updated: 2011-09-27 09:27

(chinaculture.org)

  Comments() Print Mail Large Medium  Small 分享按鈕 0

First man-made satellite

Dong Fang Hong I [File Photo]

China launched its first satellite Dong Fang Hong I (DFH I) to earth orbit on April 24, 1970, becoming the fifth country in the world to independently launch satellite following the USSR, USA, France and Japan. The 390-lb. electronic ball floated around the earth blaring the patriotic song The East Is Red.

Dong Fang Hong I was sent to the space by China's own "Long March" space rocket. The total mass of the spin stabilized satellite was 173 kg, heavier than the weight of the Soviet Union, US, France and Japan's first satellites added together. It took DFH I 114 minutes to surround the earth one time. Its shape was similar to the American Telstar, a seventy-two-face polyhedron 1 m in diameter. The satellite was spin stabilized during its flight in space.

The successful launch of DFH I laid solid foundation for the development of spaceflight technology in China, fueled the emergence of the country's spaceflight industry and enabled China's technology in this field to keep up with the world pace.

 

主站蜘蛛池模板: 久久久久久久久亚洲 | xxxxwwww国产 | 国产18在线观看 | 国产日韩av在线 | 亚洲专区av| 成人免费视频网站在线看 | 久久久久一区二区三区四区 | 久久久久免费 | 黄色一级免费网站 | 国产亚洲精品自拍 | 亚洲图片一区 | 东京热毛片 | 黄页在线播放 | 免费观看黄色av | 欧美三级在线免费观看 | 亚洲第一视频 | 三级黄色免费网站 | 一区二区免费 | 色噜噜狠狠一区二区三区果冻 | 亚洲天堂成人在线观看 | 91n在线观看 | 精品国产一区在线观看 | 国产欧美精品在线 | 亚洲欧洲日韩 | 亚洲拍拍拍| 秋霞影院午夜老牛影院 | 国产成人精品亚洲 | 日本韩国欧美在线 | 色综合天天综合综合国产 | 成人av网站大全 | 国产一区自拍视频 | 久久国产欧美 | 成人在线观看一区 | 日本免费一区二区三区四区 | 99久久久精品 | 经典av在线| 国产午夜精品久久久久久久久 | av永久免费观看 | 香蕉毛片 | 免费成人激情视频 | 国产在线第二页 |