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| 全天候飞行 | |||
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| 全天候飞行 | |||
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| 全天候飞行〔运行，作业〕 | |||
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all weather operations : 6 phrases in 4 subjects |
| Aviation | 1 |
| Economy | 1 |
| Explosives and Explosive Ordnance Disposal | 3 |
| International trade | 1 |
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