Keyword [Coal seam permeability enhancement] Result: 1 - 2 | Page: 1 of 1 1.  Research On The Mechanism Of Permeability Enhancement Based On Breaking Coal-rock By Dynamic Impact Of Water Jet In Boreholes And Its Application On Gas Extraction 2.  Study On Coal Seam Permeability Enhancement Of Powder Liner Perforating Charge   <<First  <Prev  Next>  Last>>  Jump to

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