Keyword [drilling pressure relief] Result: 1 - 5 | Page: 1 of 1 1.  Study On The Drilling Pressure Relief Support Technology Of High Stress Soft Rock Coal Roadway 2.  Bored Of Pressure Relief Mechanism And A Reasonable Argument 3.  Control Effect Of Mechanical Properties On Borehole Pressure Relief In Coal Seam 4.  Study On Large Scale Roof Caving And Control Technology In Hard Roof Working Face Under Pillar In Jinhuagong Mine 5.  Drilling Mechanism Of Combined Bit In Coal Seam Drilling Pressure Relief And Its Application   <<First  <Prev  Next>  Last>>  Jump to

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