观“嫦娥二号”发射成功有感

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1、观“嫦娥二号”发射成功有感今天，是国庆放假的第一天，我十分兴奋，因为今天不仅是国庆61周年，而且今天载着我国第二颗探月卫星“嫦娥二号”的“长三丙”火箭已在群山环抱中的西昌卫星发射中心成功发射。“嫦娥二号”探月卫星是我国发射的第二颗探月卫星是我国探月工程中“绕、落、回”三部曲中，“绕”的重要部分，它为未来“嫦娥三号”和“嫦娥四号”奠定重要的基础。“嫦娥二号”比“嫦娥一号”要先进许多。它最大的亮点就是轨道的变化。曾经关注过“嫦娥一号”的人都知道“嫦娥一号”并不是直接奔月，而是先绕地球三大圈，做引力加速，然后再以螺旋式的轨道奔月。而“嫦娥二号”是利用大推力火箭直接送上地月转移轨道，直接奔月，这样一来

2、，可比原来节省56天。“长征三号丙运载火箭”简称“长三丙”是“嫦娥二号”的交通工具。“长三丙”属于大推力火箭。它之所以可以直接把“嫦娥二号”送上地月转移轨道，直接奔月是因为“长三丙”比“长三甲”多了两个固体燃料推助器。2010年10月1日18时59分57秒，托举着“嫦娥二号”的“长征三号丙运载火箭”终于成功点火。19时整，随着黄色烟雾和红色尾焰的喷出，震耳欲聋的轰鸣声在山谷中回荡，火箭终于起飞了。“二、三级火箭分离”，“一、二级火箭分离”，“星箭分离”。这一个个成功的分离代表着“嫦娥二号”的发射任务圆满成功了！“嫦娥二号”发射成功意味着我国的探月工程又迈出一大步，这也证明我国在航天领域又实现了

3、一次飞跃。在政治意义上，也在一次证明了我国的航天和科技技术十分先进，总之，意义深远。C29C91AFE4CED1B6C8795AD9C91AFE4CED1B6C8795AD91AFE4CED1B6C8795AD9C91FE4CED1B6C8795AD29C91AFEDD1B6C87D1B6C8795AD9C91AFE4CED1B6C8795AD91AFE4CED1B6C8795AD9C91FE4CED1B6C8795AD29C91AF95AD9C91AFE4CED1B6C8795AD91AFE4CED1B6C8795AD9D1B6C8795AD9C91AFE4CED1B6C8795A1AFE4

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