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| 钻孔; 螺钻; 钻探 | |||
| 螺旋钻进 | |||
| 螺旋钻钻孔; 螺旋钻孑 | |||
| 螺旋钻孔; 机械钻进 | |||
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auger drilling : 7 phrases in 4 subjects |
| Business | 1 |
| Engineering geology | 4 |
| Hydroelectric power stations | 1 |
| Technology | 1 |
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