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Keyword [Extraction negative pressure]
Result: 1 - 4 | Page: 1 of 1
1.
Research On Extraction Effect Change Law Along The Drainage Drilling Hole
2.
The Numerical Simulation Research For The Parameters Of Pre-pumping Coal Seam Gas In Hebi Third Mine
3.
Study On Gas Extraction Technology Of Cis Layer Drilling In 11-2 Coal Seam Of Pan San Mine
4.
Study On The Drilling Distance And Negative Pressure Of 2601 Working Face Gas Pre-drainage In Zhangcun Coal Mine
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