English 版 (精华区)
发信人: murjun (萧牧), 信区: English
标 题: China's "Long March" carrier rockets
发信站: 哈工大紫丁香 (2003年10月15日20:07:55 星期三), 站内信件
With Shenzhou-5 spaceship blasted into space, China's "Long March" carrier
rockets have created the 29th successful launch record in the history of
China' s space flight program since 1996.
Developed by China on its own, the "Long March" carrier rockets fall into
four series with 12 models. They are China's major carrier rockets in its
space flight program.
"Long March" carrier rockets have a payload capacity of 12 tons for the
launch into the low earth orbit and 5.2 tons for the launch into the
geosynchronous transfer orbit (GTO).
"Long March" carrier rockets can launch satellites into any desired orbits,
with the precision orbiting reaching advanced levels in the world.
Since the launch of China's first man-made satellite on April 24, 1970, the
"Long March" carrier rockets have made 71 launches, sending 52 home-made
satellites, 27 foreign satellites and five " Shenzhou" spaceships into space.
Only six of the 71 launches failed. The success rate has reached the same
level as in developed countries.
"Long March" carrier rockets started to offer commercial launches on April 7,
1990 when "Long March" CZ-3 successfully sent a communications satellite into
space for the US Hughes company.
"Long March" carrier rockets have so far made 27 commercial launches,
occupying five percent of the international satellite launch service market.
--
我非常喜欢在有风有雨的季节计划自己;
有风有雨后的季节晒着阳光我昏昏睡去;
睡去的我依然在甜梦中将曾有过的温习;
温习昨天前天等等的种种激情与过去。
Jim Mural
※ 来源:·哈工大紫丁香 bbs.hit.edu.cn·[FROM: 218.8.123.120]
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