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zhua ke xiao xing xing jian kong jian zhan
Pages: 5
Year: Issue:  Z2
Journal: Required Reading for Junior Middle School Students

Keyword:  小行星空间站科学家航天局宇航员捕捉重新定位计划中人类火星;
Abstract: <正>美国航天局的科学家们近来制订了一个计划:捕捉一颗500吨重的小行星,调整它的位置,把它变成宇航员前往火星途中的空间站。一旦获得批准,这将是人类头一回挪动天上的物体。在这项计划中,科学家们阐述了他们将如何捕捉小行星。科学家们将在一枚老式"宇宙神V
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