Keyword [direct roof] Result: 1 - 5 | Page: 1 of 1 1.  Study On Relationship Between Depositing Characteristic Of Falling Waste And Top Coal Recovery In Full-mechanized Caving 2.  Studies On Movement Rules Of Direct Roof And Compaction Strength Of Loess In Filling Mining With Loess 3.  Study On Gas Adsorption Desorption Characteristics Of High Gassy Coal Seam And Direct Roof 4.  Research On Control Technology For Roof Caving In Gob-side Entry Retaining In Upper Roadway Within Deeply Inclined Coal Seam 5.  Failure Characteristics Of Direct Roof With Different Thickness Of Roadway And Bolt Support Technology   <<First  <Prev  Next>  Last>>  Jump to

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