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- 油气钻井 (3)
- gas well drilling (2)
- 工程造价 (2)
- 研究 (2)
- earth sciences (1)
- environmental aspects (1)
- geology (1)
- hydrates (1)
- hydraulic fracturing (1)
- natural gas (1)
- offshore gas well drilling (1)
- oil well drilling (1)
- petroleum (1)
- prospecting (1)
- reservoir oil pressure (1)
- shale gas industry (1)
- 水平井 (1)
- 油页岩 (1)
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