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| 套管泵; 无油管泵 | |||
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casing pump : 27 phrases in 9 subjects |
| Automobiles | 1 |
| Chemistry | 2 |
| Compressors | 1 |
| Drilling | 1 |
| Oil / petroleum | 4 |
| Rail transport | 1 |
| Shipbuilding | 2 |
| Technology | 13 |
| Water resources | 2 |
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