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| ясс; виброударное оборудование | |||
| ударный переводник | |||
| амортизирующий переводник | |||
| яс | |||
| 震 击器: 9 phrases in 5 subjects |
| Drilling | 1 |
| General | 2 |
| Oil / petroleum | 1 |
| Oil and gas technology | 1 |
| Technology | 4 |
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