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| 油层套管; 生产套管; 出油套管; 油摆套管 | |||
| 油层套管 (для бурения) | |||
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| 生产套管钻井用 | |||
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эксплуатационная колонна : 9 phrases in 3 subjects |
| Drilling | 5 |
| General | 2 |
| Oil / petroleum | 2 |
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