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活塞式
| 凿岩机
| 活塞式 | |
| tech. | piston type |
| 凿岩机 | |
| bridg.constr. | pulsator |
| eng.geol. | drifting machine; drilling machine; drilling rig; gadder; hammer rock drill |
| hydroel.st. | trepan; rock drill |
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| plunger-type | |||
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| piston type | |||
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活塞式 : 445 phrases in 30 subjects |
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