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| керн; колонка породы; буровая проба; проба из грунтоноса | |||
| 砂样: 8 phrases in 6 subjects |
| Drilling | 1 |
| General | 2 |
| Geology | 1 |
| Medical | 1 |
| Oil / petroleum | 2 |
| Oil and gas | 1 |
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