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| borehole surveying | |||
| borehole survey; drill hole exploration; prospecting by boring | |||
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钻孔勘探 : 19 phrases in 6 subjects |
| Bridge construction | 2 |
| Engineering geology | 4 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 1 |
| Technology | 10 |
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