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机泵 组 : 37 phrases in 14 subjects |
| Automobiles | 2 |
| Earth sciences | 3 |
| Ecology | 1 |
| Electronics | 1 |
| General | 1 |
| Hydroelectric power stations | 2 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Nautical | 2 |
| Oil / petroleum | 7 |
| Rail transport | 1 |
| Refrigeration | 6 |
| Technology | 8 |
| Water resources | 1 |
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