Keyword [Horizontal slice mining] Result: 1 - 2 | Page: 1 of 1 1.  The Research On Surface Subsidence Due To Mining Horizontal Slice Of Extra-thick And Steep Coal Seam 2.  Study On Movement Law Of Surrounding Coal-rock In The Stope Of Steep And Extra-thick Soft Coal Seam   <<First  <Prev  Next>  Last>>  Jump to

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