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活 塞 泵 : 160 phrases in 22 subjects |
Agriculture | 8 |
Armored vehicles | 1 |
Automobiles | 5 |
Aviation | 1 |
Chemistry | 6 |
Construction | 3 |
Drilling | 10 |
Earth sciences | 1 |
Ecology | 2 |
Electronics | 3 |
Engineering geology | 2 |
General | 1 |
Mechanics | 1 |
Metallurgy | 6 |
Nautical | 3 |
Oil / petroleum | 19 |
Plastics | 2 |
Rail transport | 1 |
Refrigeration | 4 |
Shipbuilding | 3 |
Space | 1 |
Technology | 77 |