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| 深孔爆破 | |||
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| 深孔爆破炮孔深度较大的钻孔爆破。一般孔深大于5m,孔径大于50long75 mm 的爆破，称为深孔爆破。主要用于采矿、筑路和开挖坝基等爆破工程 | |||
| 深孔爆破 | |||
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deep -hole blasting : 5 phrases in 1 subject |
| Explosives and Explosive Ordnance Disposal | 5 |
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