换向 阀: 53 phrases in 14 subjects |
Automobiles | 4 |
Aviation | 2 |
Construction | 1 |
Drilling | 1 |
Hydroelectric power stations | 3 |
Metallurgy | 8 |
Oil / petroleum | 2 |
Rail transport | 1 |
Refrigeration | 2 |
Shipbuilding | 1 |
Space | 3 |
Technology | 23 |
Textile industry | 1 |
Wind Energy | 1 |