Keyword [coal seam permeability] Result: 21 - 23 | Page: 2 of 2 21.  Study On Coal Seam Permeability Enhancement Of Powder Liner Perforating Charge 22.  Numerical Simulation Study Of THM Coupling For Gas Seepage Through Pre-draining Boreholes In Electric Heating High Temperature Field 23.  Research On Cumulative Blasting Technology For Improving Coal Seam Permeability And Roof Weaking   <<First  <Prev  Next>  Last>>  Jump to

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