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| arbre du sondage; colonne du forage | |||
| chapelet d'outils | |||
| arbre de sondage; colonne de forage | |||
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буровая колонна : 20 phrases in 5 subjects |
| General | 2 |
| Hydraulic engineering | 6 |
| Mining | 4 |
| Oil and gas technology | 1 |
| Technology | 7 |
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