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subsurface investigation
| drilling
| subsurface investigation | |
| eng.geol. | 地下勘察 |
| drilling | |
| agric. | 条施 |
| met. | 钻进; 钻削 |
| O&G. tech. tech. | 钻井 |
| UN geol. | 钻探 |
| |||
| 地下勘察 | |||
| 地下探查; 地下探测; 工程地质勘探; 地下调查 | |||
|
subsurface investigation drilling : 3 phrases in 2 subjects |
| Geophysics | 1 |
| Technology | 2 |
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