排 气 阀 : 116 phrases in 20 subjects |
Architecture | 2 |
Automobiles | 26 |
Aviation | 3 |
Compressors | 6 |
Electronics | 3 |
General | 2 |
Hydroelectric power stations | 3 |
Mechanics | 1 |
Metallurgy | 4 |
Nautical | 2 |
Oil / petroleum | 2 |
Oil processing plants | 1 |
Racing and motorsport | 1 |
Rail transport | 1 |
Refrigeration | 6 |
Shipbuilding | 5 |
Solar power | 2 |
Space | 4 |
Steel production | 1 |
Technology | 41 |