Keyword [large diameter borehole] Result: 1 - 9 | Page: 1 of 1 1.  Study On Key Technologies And Application Of Salt-Cavern Gas Storage Well Drilling 2.  Study And Applications Of High-quality&Fast Drilling Technology In Wuqi Area 3.  Study On The Predictive Method Of Coal And Gas Outburst With The Large Diameter Borehole In Front Of Working Face 4.  Study On Gas Drainage Technology With Large Diameter High Level Sector Boreholes Of The Goaf In High Gas Mine 5.  Study On Risk Assessment And Depressurization Technology Of Bump Rock In The Thick Coal Seam Mining Kilometers Of Coal Mine 6.  Study On The Energy Dissipated Mechanism Of Large-diameter Borehole For Coalburst Control 7.  Application Of Super Large Diameter Borehole And Large Flow Gas Extraction Technology In Goaf In Ma Lan Mine 8.  Study On Gas Emission Law And Extraction Technology Of Fully Mechanized Caving Face In Tashan Mine 9.  Study On The Law Of Energy Zone Migration And The Mechanism Of Segmented Enlarged-diameter Borehole Destressing In High Static Stress Roadway   <<First  <Prev  Next>  Last>>  Jump to

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