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| 矿块崩落法崩落采矿法的一种，采用十字形掏槽。矿石崩落后，因采区不稳，所以要保留部分矿柱予以支撑。采场采空后，再用硐室爆破法清除矿柱。这种方法采矿效率高而且经济，但对矿体的条件要求比较高，适用于开采规模较大的低品位矿床; 分块崩落采矿 | |||
| 大块坍落 | |||
| 阶段崩落开采法; 分块崩落开采法 | |||
| block caving: 4 phrases in 2 subjects |
| Explosives and Explosive Ordnance Disposal | 2 |
| Technology | 2 |
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