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| operating operational empty weight; operating weight empty; operational empty weight (指基本空重或机队空重加上使用项目的重量。即飞机无商载、无可用燃料的重量) | |||
| operating mass empty | |||
| 使 用空重: 12 phrases in 5 subjects |
| Aviation | 3 |
| Electronics | 1 |
| Shipbuilding | 2 |
| Space | 5 |
| United States | 1 |
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