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射 气泵 : 29 phrases in 11 subjects |
| Automobiles | 2 |
| Drilling | 1 |
| Electronics | 5 |
| Engineering geology | 1 |
| General | 2 |
| Mechanics | 1 |
| Metallurgy | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Refrigeration | 1 |
| Technology | 12 |
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