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噪声抑 制 : 99 phrases in 17 subjects |
Air defense | 6 |
Architecture | 1 |
Automobiles | 6 |
Aviation | 9 |
Communications | 1 |
Earth sciences | 2 |
Electronics | 23 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 2 |
Geophysics | 2 |
Information technology | 3 |
Oil / petroleum | 1 |
Otorhinolaryngology | 1 |
Shipbuilding | 1 |
Space | 8 |
Technology | 31 |
Telecommunications | 1 |