保护 接地 : 92 phrases in 18 subjects |
Air defense | 1 |
Architecture | 1 |
Aviation | 4 |
Compressors | 1 |
Drilling | 1 |
Electric machinery | 16 |
Electronics | 21 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 1 |
Hydroelectric power stations | 11 |
Metallurgy | 2 |
Nuclear and fusion power | 1 |
Oil / petroleum | 2 |
Rail transport | 5 |
Shipbuilding | 1 |
Space | 2 |
Technology | 20 |
Telecommunications | 1 |