Keyword [unstable coal seam] Result: 1 - 6 | Page: 1 of 1 1.  The Technical Study Of Mining Of Unstable Coal Seam 2.  Technical Research On Exploiting Unstable Coal Seam With Compound Roof 3.  Study On The Pressure Behavior Of "Two Soft And One Hard" Top Coal Caving In Unstable Coal Seam Face And Control Technology 4.  The Research On Supporting Technology Of Coal Roadway In Unstable Coal Seams With "Weak-Roof-Coal-Floor" Of Shihuatian Coal Mine 5.  Study On Surface Subsidence Law Of Unstable Coal Seam In Laojuntang Coal Mine Coal Mine 6.  Study On Technological System Complexity On Fully-mechanized Long-wall Mining In Soft And Unstable Coal Seam With Large Dip Angle   <<First  <Prev  Next>  Last>>  Jump to

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