Keyword [borehole spacing] Result: 1 - 4 | Page: 1 of 1 1.  ParametersOptimization Design Of Gas Drainage Boreholes In Virgincoal Seam In Dafosi Mine 2.  Numerical Simulation Research On Reasonable Borehole Spacing Of Presplitting Blasting In Coal Seam 3.  Research On The Deformation And Seepage Law Of Borehole Wall And Drilling Parameters Optimization 4.  Study On Hydraulic Slit Gas Drainage Technology In JianShe Coal Mine   <<First  <Prev  Next>  Last>>  Jump to

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