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| 绳式顿钻钻进 | |||
| 钢绳冲击钻进; 冲击钻进 | |||
| 钢丝绳钻头钻探; 钢丝绳冲击钻进 (法); 索式冲击钻进法 | |||
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cable tool drilling : 11 phrases in 2 subjects |
| Engineering geology | 5 |
| Technology | 6 |
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