反 向电流 : 63 phrases in 14 subjects |
Automobiles | 3 |
Aviation | 1 |
Construction | 1 |
Drilling | 1 |
Electric machinery | 1 |
Electronics | 17 |
General | 2 |
Geophysics | 2 |
Information technology | 3 |
Metallurgy | 3 |
Oil / petroleum | 1 |
Shipbuilding | 2 |
Space | 2 |
Technology | 24 |