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вспомогательный подшипник опоры
| шарошечного долота
| вспомогательный подшипник опоры | |
| tech. | trunnion supplementary bearing |
| шарошечное долото | |
| O&G | cone rock bit; cone rock-bit; cone bit; rock bit; rock drill |
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| trunnion supplementary bearing | |||
| вспомогательный подшипник опоры: 3 phrases in 1 subject |
| Technology | 3 |
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