止回阀: 205 phrases in 26 subjects |
Agriculture | 1 |
Architecture | 2 |
Automobiles | 9 |
Aviation | 4 |
Chemistry | 2 |
Compressors | 1 |
Construction | 2 |
Drilling | 7 |
Earth sciences | 2 |
Ecology | 1 |
Electric machinery | 1 |
Electronics | 1 |
Engineering geology | 1 |
Hydroelectric power stations | 9 |
Mechanics | 5 |
Metallurgy | 5 |
Nautical | 2 |
Oil / petroleum | 22 |
Oil processing plants | 2 |
Plastics | 9 |
Rail transport | 7 |
Refrigeration | 3 |
Shipbuilding | 8 |
Technology | 96 |
Textile industry | 1 |
Wind Energy | 2 |