作业帮求初三英语作文.关于建国60周年的变化关于建国60周年的变化初三作文.
来源：学生作业帮助网 编辑：作业帮 时间：2024/04/30 14:11:55
求初三英语作文.关于建国60周年的变化关于建国60周年的变化初三作文.
求初三英语作文.关于建国60周年的变化
关于建国60周年的变化初三作文.
求初三英语作文.关于建国60周年的变化关于建国60周年的变化初三作文.
Shenzhou VII
Chinese scientists have finished assembling the Long March II-F rocket that will carry the country's third manned（有人驾驶的） spaceship, Shenzhou VII, into space.
The China Academy of Launch Vehicle Technology held a ceremony on wednesday to celebrate the event.
The rocket has passed all tests at the assembly stage. It soon will be sent to the Jiuquan Satellite Launch Center in the northwestern Gansu Province, ready to carry the Shenzhou VII spaceship into space this evening,sep 25th.
Jing Muchun is the chief designer of the launch vehicle system at China's Manned Space Program.
"The spacecraft will be attached to the rocket at the launch site. We have tested the whole system about 10 times to ensure the safety of the rocket, we also make quality-control checks and think about all possible problems beforehand."
The Long March II-F carrier rocket is the largest of its kind in China, also the safest one. Scientists have made more than 30 technical improvements on the rocket to further increase its reliability for the launch of the Shenzhou VII. The spacecraft arrived at the launch center earlier this month.
China successfully sent two manned spacecraft into orbit in 2003 and 2005 respectively
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