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安 全 阀 : 410 phrases in 30 subjects |
Agriculture | 1 |
Architecture | 2 |
Automobiles | 25 |
Aviation | 9 |
Chemistry | 9 |
Compressors | 9 |
Drilling | 15 |
Earth sciences | 1 |
Ecology | 1 |
Electronics | 10 |
Engineering geology | 1 |
Food industry | 1 |
General | 4 |
Hydroelectric power stations | 15 |
Mechanics | 9 |
Metallurgy | 7 |
Mining | 6 |
Nautical | 4 |
Navigation | 4 |
Oil / petroleum | 55 |
Oil processing plants | 2 |
Rail transport | 6 |
Refrigeration | 12 |
Rowing | 1 |
Shipbuilding | 18 |
Space | 11 |
Steel production | 1 |
Surgery | 1 |
Technology | 167 |
Wind Energy | 3 |