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地球轨道沦为垃圾场 昂贵材料能回收再利用吗？
source link: http://tech.sina.com.cn/d/s/2018-02-10/doc-ifyrkzqr1096348.shtml
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据Futurism报道，地球轨道空间是无数卫星的安身之所，这些卫星使我们能够生活在现代通讯时代。然而，这个空间里也充斥着大量太空垃圾，我们是否能将这些太空垃圾作为资源重新利用起来？美国太空探索技术公司SpaceX刚刚成功完成了猎鹰重型火箭的
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