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| borehole size (borehole diameter); borehole size/borehole diameter | |||
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钻孔 孔径 : 89 phrases in 10 subjects |
| Architecture | 3 |
| Automobiles | 1 |
| Bridge construction | 6 |
| Desert science | 2 |
| Engineering geology | 12 |
| Explosives and Explosive Ordnance Disposal | 3 |
| General | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Technology | 59 |
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