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national aeronautics and space council (美国) | |||
National Aeronautics and Space Committee | |||
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National Aeronautics and Space Council | |||
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National Aeronautics and Space Council |
国家航空航天委员会 : 13 phrases in 4 subjects |
Aviation | 6 |
General | 1 |
Space | 4 |
United States | 2 |