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扩音 器 : 72 phrases in 16 subjects |
Advertising | 1 |
Air defense | 1 |
Aviation | 3 |
Business | 1 |
Electronics | 5 |
General | 7 |
Information technology | 1 |
Metallurgy | 1 |
Multimedia | 1 |
Nautical | 1 |
Otorhinolaryngology | 1 |
Shipbuilding | 31 |
Space | 3 |
Technology | 13 |
Telecommunications | 1 |
Wind Energy | 1 |