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| роторное бурение | |||
| вращательное бурение | |||
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rotation drilling : 14 phrases in 6 subjects |
| Drilling | 1 |
| Oil / petroleum | 5 |
| Oil and gas | 3 |
| Oil and gas technology | 3 |
| Oilfields | 1 |
| Technology | 1 |
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