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天宫一号掉哪儿各国都没猜准 有必要打捞吗？
source link: http://tech.sina.com.cn/d/s/2018-04-03/doc-ifyteqtq2952566.shtml
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本报特约记者张亦驰本报记者马俊中载人航天工程官方网站4月2日发布公告：北京航天飞行控制中心和有关机构监测分析，4月2日8时15分左右，天宫一号目标飞行器已再入大气层，再入落区位于南太平洋中部区域，绝大部分器件在再入大气层过程中烧蚀销毁。很多
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