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| 第一宇宙速度; 沿轨道的运行速度; 轨道速度沿轨道的运行速度 | |||
| 轨道速度; 弹道速度 | |||
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орбитальная скорость : 5 phrases in 2 subjects |
| General | 1 |
| Technology | 4 |
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