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| 钻井成本; 钻井费用 | |||
| 钻探费用; 凿岩成本 | |||
| 钻探成本 | |||
| drilling cost: 23 phrases in 5 subjects |
| Drilling | 8 |
| Economy | 3 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 4 |
| Technology | 7 |
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