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| 硐室爆破; 药室爆破; 坑道爆破采用集中或条形硐室装药，爆破开挖岩土的作业 | |||
| 坑道爆破; 工作面爆破; 掘进爆破; 峒室爆破; 梯段爆破; 碉室爆破 | |||
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heading blasting : 7 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 2 |
| Technology | 5 |
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