<正>In 1903, Russian scientist Tsiolkovsky released his rocket motion equation, which is a prelude to explore outer space. OnApril 12, 1 961, the first manned s
<正>China's first manned spaceship, theShenzhou-5, blasted off from theJiuquan Satellite Launch Centerin the northwestern China atop a LM-2Flaunch vehicle a
There are three major space launch bases in China, the Jiuquan Satellite Launch Center,the Taiyuan Satellite Launch Center and the Xichang Satellite Launch Cent
This paper presents the cryogenic upper stage passivation of Long March 3A series launch vehicles,including venting of residual propellants, residual gas ejecti
China on Sept.25 recovered its 19^th recoverable sci-tech experimental satellite 27 days after the satellite orbited in space. The satellite, which was launched