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| трёхшарошечное буровое долото | |||
| трёхшарошечное долото (станка вращательного бурения) | |||
| трёхшарошечное долото (AD); трёхшарошечное долото (Alexander Demidov) | |||
| трёхшарошечное коническое долото | |||
| tricone bit: 15 phrases in 6 subjects |
| Drilling | 1 |
| Mining | 1 |
| Oil / petroleum | 8 |
| Oil and gas technology | 1 |
| Oilfields | 3 |
| Technology | 1 |
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