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| 轨道运输飞船 | |||
| 轨道转移飞行器 | |||
| English thesaurus | |||
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| OTV | |||
| OTV (Space) | |||
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orbital transfer vehicle : 8 phrases in 3 subjects |
| Aviation | 1 |
| Space | 5 |
| United States | 2 |
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