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Keyword [gravel stratum]
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1. Study On The Stability Of The Surrounding Rock Of Inclined Shaft In Thick Gravel Stratum With Abundant Water
2. The Supporting Technology And Field Monitoring Research On Loose Conglomerate Of Roadway
3. Analysis On Characteristics Of Gravel Stratum And Mechanism Of Borehole Wall Instability In BZ Block
4. Design And Application Of The Drill Bits Used In Gravel Stratum In Kuqa Piedmont
5. Research On Wellbore Stability And Cleaning In Gravel Stratum Horizontal Radial Wells
6. Evaluation Method Of PDC Drill Bit Rock Drillability For Gravel Stratum In Mahu Area
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