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Keyword [drilling through layers]
Result: 1 - 3 | Page: 1 of 1
1.
Integrated Of Key Parameters Of Low Permeability Coal Seam Gas Drainage Drilling Through Layers Of Hebi 4
Th
Mine
2.
Optimization Of Coal Seam Hydraulic Punching Technology And Evaluation Of Outburst Control Effect In The Chiyu Coal Mine
3.
Numerical Simulation Study On Gas Displacement Law Of Coal Seam By Injecting N
2
-O
2
Mixed Gas
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