工 作电压 : 64 phrases in 19 subjects |
Aviation | 4 |
Business | 1 |
Communications | 2 |
Drilling | 1 |
Electric machinery | 3 |
Electronics | 19 |
General | 4 |
Geophysics | 2 |
Hydroelectric power stations | 2 |
Information technology | 1 |
Mining | 1 |
Nautical | 1 |
Power system protection | 1 |
Rail transport | 5 |
Risk Management | 1 |
Solar power | 1 |
Space | 4 |
Technology | 8 |
Wind Energy | 3 |