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长征五号遥二火箭飞行出现异常 发射任务失利

2017-07-02 20:18:38   新华网

新闻多看点:“长征火箭”家族的这些年

自1956年中国人建立航天事业至今,已经过去了整整60个年头。从发射中国第一颗人造地球卫星的长征一号到今天,我国已经发展出适应不同轨道发射需求的多型运载火箭。长征火箭家族的这些年,火箭的演变同时也是中国航天多年成长的见证。

长征一号:借鉴导弹技术发展

1970年4月24日21时35分,随着巨大的轰鸣声,中国第一枚运载火箭“长征一号”从戈壁大漠腾空而起。

几个小时后,从“东方红一号”卫星上传来的《东方红》乐曲传送到中国人的耳朵里。这一幕,成为一代中国人不可磨灭的记忆。而当时这枚火箭,其实是中国最早的一批航天人采用了借鉴导弹技术来发展火箭的思路。

宇宙高歌“东方红”

长征一号,这型中国人最早的运载火箭,进行过两次发射,也让中国人真正迈出了奔向太空的第一步,它当时直径只有2.25米,而直到中国人研制成功长征二号,中国的运载火箭才增大到3.35米的直径,并一直沿用至今。

长征二号:送航天员上太空

1990年,一枚外形完全不同于以往的新型中国火箭,在西昌卫星发射中心成功首飞。这枚火箭最特别的地方,在于四周捆绑着四枚小火箭,这就是中国人首次突破的助推器捆绑技术。而这型火箭,就是对后来“长征”家族多个型号产生重要影响的长征二号捆绑式火箭,简称长二捆。

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