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来自美国宇航局的天空实验室和几个不载人的卫星的数据得到彻底研究。
Data from the NASA skylab project and several unmanned satellites are thoroughly analyzed.
youdao
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来自美国宇航局的天空实验室和几个不载人的卫星的数据得到彻底研究。
Data from the NASA skylab project and several unmanned satellites are thoroughly analyzed.
youdao