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无游梁绳式顿钻
| 钻机
| 无游梁绳式顿钻 | |
| oil | churn drilling |
| 钻 机 | |
| met. | boring machine; rock-boring machine |
| 钻机 | |
| bridg.constr. | drill machine; drill rigs |
| hydroel.st. | drilling machine; drill; boring machine |
| met. | driller |
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| churn drilling | |||
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无游梁绳式顿钻 : 3 phrases in 2 subjects |
| Drilling | 1 |
| Oil / petroleum | 2 |
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