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| 钻屑 | |||
| 钻屑钻凿炮孔时产生的岩石碎屑 | |||
| 临时停钻; 钻进异常; 钻〔岩〕屑 | |||
| drilling breaks: 1 phrase in 1 subject |
| Explosives and Explosive Ordnance Disposal | 1 |
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