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航空材料 | |||
航空物资 |
air material : 50 phrases in 11 subjects |
Architecture | 2 |
Aviation | 19 |
Economy | 1 |
Electronics | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 2 |
Metallurgy | 2 |
Rail transport | 1 |
Refrigeration | 1 |
Technology | 17 |
United States | 2 |