Keyword [Qianbei mining area] Result: 1 - 4 | Page: 1 of 1 1.  Study On Protective Coal Seam Mining And Testing Technology Of Protection Effect Colose Distance Coal Seam Group In Qianbei Mining Area 2.  Analysis Of Water Resistance Capacity And Risk Assessment Of Water Inrush In Coal Floor Of Qianbei Mining Area 3.  Study On Water Inrush Mechanism And Thickness For Preventing Water Inrush From Karst Water-conducting Fault In Excavation Roadway 4.  Study On Multi-field Catastrophe Evolution Mechanism Of Water Inrush Of Concealed Karst Cave In Roadway Excavation   <<First  <Prev  Next>  Last>>  Jump to

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