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| 载人的宇宙飞行 | |||
| 载人宇宙飞行 | |||
| 载人航天; 载人空间飞行; 载人太空飞行 | |||
| manned space flight: 20 phrases in 3 subjects |
| Electronics | 2 |
| Space | 17 |
| United States | 1 |
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