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空战 | |||
空气推动 |
air operation: 59 phrases in 13 subjects |
Air defense | 8 |
Automobiles | 1 |
Aviation | 18 |
Ecology | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
International trade | 1 |
Refrigeration | 1 |
Space | 7 |
Technology | 5 |
United Nations | 1 |
United States | 10 |