平 衡 阀 : 55 phrases in 14 subjects |
Agriculture | 1 |
Architecture | 1 |
Automobiles | 5 |
Compressors | 2 |
Drilling | 1 |
Hydroelectric power stations | 1 |
Mechanics | 2 |
Metallurgy | 1 |
Oil / petroleum | 6 |
Rail transport | 1 |
Refrigeration | 4 |
Space | 3 |
Technology | 26 |
Wind Energy | 1 |