调速电 动 机 : 63 phrases in 15 subjects |
Automobiles | 3 |
Business | 1 |
Construction | 1 |
Earth sciences | 1 |
Electric machinery | 24 |
Electronics | 2 |
Hydroelectric power stations | 1 |
Mechanics | 1 |
Metallurgy | 4 |
Nautical | 3 |
Oil / petroleum | 4 |
Refrigeration | 1 |
Shipbuilding | 1 |
Technology | 13 |
Wind Energy | 3 |