信号设备 : 107 phrases in 19 subjects |
Air defense | 5 |
Aviation | 16 |
Communications | 3 |
Company name | 1 |
Electric machinery | 3 |
Electronics | 22 |
General | 7 |
Geophysics | 1 |
Information technology | 1 |
Nautical | 1 |
Oil / petroleum | 2 |
Project management | 1 |
Radio | 1 |
Rail transport | 2 |
Shipbuilding | 2 |
Space | 5 |
Technology | 32 |
Telecommunications | 1 |
Wind Energy | 1 |