Keyword [close distance] Result: 121 - 125 | Page: 7 of 7 121.  Study On Surrounding Rock Control Technology Of Goaf Floor Roadway Under The Condition Of Close Coal Seam Spacing And Several Coal Pillars 122.  Study On Bolt Support Technology Of Roadway Under Goaf In Close Distance Coal Seam 123.  Study On Stability Control Of Roadway Surrounding Rock Under Near Coal Seam Working Face 124.  Control Technology Of Retracement Roadway Surrounding Rock In Lower Coal Seam In Huangbaici Mine 125.  Research On Failure Characteristics And Control Ways Of Roadways Extremely Close Distance Coal   <<First  <Prev  Next>  Last>>  Jump to

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