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| 游梁抽油机; 磕头机; 采石油的抽油机 | |||
| 抽油机 | |||
| 抽油机深井采油用; 深井采油泵驱动装置 | |||
| станок-качалка: 9 phrases in 3 subjects |
| General | 4 |
| Oil processing plants | 2 |
| Oilfields | 3 |
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