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Keyword [drill hole]
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1. Research On State Stress Of Coal Seam And Prevention Of Coal And Gas Outburst
2. The Better Chosen Of The Field Arrangement Of The Drill Hole Pulls Out Putting Drills And The Drill Hole Parameter Of The Coal Bed Gas In PanJiang Mining Area
3. Integrated Of Key Parameters Of Low Permeability Coal Seam Gas Drainage Drilling Through Layers Of Hebi 4Th Mine
4. Research On Permeability Increased Range Of Hydraulic Fracturing In Pan Ⅱ Coal Mine
5. Analysis And Research On Dual-Power-slag-discharge Drill Pipe For Outburst Coal Seam
6. Research On Prediction And Prevention About Rock Burst In Stress Concentration Region Of Dongtan Coalmine
7. Experimental Study Of Micro Settlement Of Ground Surface Filling Mining Technology
8. Study On Gas Drainage Parameters And Outburst Treatment Technology In Fully Caving Coal Mining Face At DaShucun Mine
9. Research On Drill Hole Defect And Optimization Of Tool Design Of Carbon Fiber Reinforced Polymer Composites
10. Design And Research Of CNC Drill Hole Fixed Ring Plane And Fixture
11. Research On High Drill Holes For Release-methanes Drainage With Wu Hushan Colliery
12. The Numerical Simulation Research Of Hydraulic Cutting Seam In The Tunneling Faces Extraction Of Coalbed Methane
13. The Research On A Total Length Of Screen Guard And Hole Sealing Technology With Pressure In Soft Coal Seam
14. Simulation Of Seepage Laws Of Gas Drainage From Drill Hole Along Coal Seam Based On Adsorption Effect
15. Research On Deflection Analysis And Control Technology Of Gun Drill Hole Axis
16. Research On Speeding Up The Drilling Of The Drill Hole Side Drilling
17. Research On High Pressure Water Jet Slotting Technology And Its Application In Jinneng Colliery
18. Calibration of rutile (uranium-thorium)/helium thermochronology: Assessing the thermal evolution of the KTB drill hole, Germany and adjacent Bohemian Massif
19. Rock magnetic studies of the CY-4 drill hole: Through the Troodos ophiolite, Cyprus
20. The effect of drill hole angle on the initial stress states and subsequent healing of a MCL reconstruction
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