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宇宙星际航行学; 太空导航术 | |||
航天; 宇航 | |||
宇航学; 星际航行学; 航天学; 宇宙航行; 星际航行; 宇宙航行学 | |||
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航天学 (研究太空飞行的科学。) |
astronautics : 60 phrases in 11 subjects |
Air defense | 1 |
Aviation | 17 |
Business | 1 |
Earth sciences | 5 |
Economy | 1 |
Electronics | 4 |
General | 6 |
Oil / petroleum | 2 |
Rail transport | 2 |
Space | 17 |
United States | 4 |