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| 全工作面钻孔指通过全工作面钻机对工作面进行机械钻孔崩落的过程，其进程主要由岩石的硬度、延伸方向和节理接缝数所控制,当处理较软岩石时掘进速度最大可达 6m/h。用该种方法钻进的直径目前最大可以达到 20m | |||
| 全断面钻探; 全断面钻进 | |||
| full face boring: 2 phrases in 1 subject |
| Hydroelectric power stations | 2 |
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