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Keyword [Gas drainage borehole]
Result: 1 - 20 | Page: 1 of 2
1. Research Of Composite Technology And Application In Bored Sealiing
2. Research On Bit For Efficient Drilling Of Gas Drainage Borehole In Nantong Mining Area
3. Study On The Stability Of Large Diameter Deep Gas Drainage Borehole Casing In The Interface Of Hard And Soft Stratum
4. Research On Failure Mechanisms Of Gas Drainage Through Drilling In Coal Seam And Efficient Sealing Technology
5. Dahuangshan Mine Mechanized Top Coal Caving Face Gas Drainage Technology Research And Evaluation
6. Research On Seepage Characteristics Of Coal Containing Gas Under Complex Loading-unloading And Its Application
7. Seepage Characteristics Around Gas Drainage Borehole And Blockage Mechanism Of Powder
8. Research On The Deflection Amount Of Bedding Gas Drainage Borehole For Effective Outburst Prevention
9. Study On Mechanism Of Borehole Collapse And Improvement Measures Of Gas Drainage Borehole In Soft Coal Seam
10. Study On Prediction Method Of Concealed Structures In Working Face Based On Gas Drainage Borehole
11. ParametersOptimization Design Of Gas Drainage Boreholes In Virgincoal Seam In Dafosi Mine
12. Coal Permeability Anisotropy And Its Effects On Gas Pre-drainage Of Coal Seam
13. Research On The Relationship Between The Parameters Of The Current Seam Borehole And The Effect Of Gas Drainage
14. Study On The Reasonable Hole Sealing Depth Of Gas Drainage Borehole In The Zhangji Coal Mine
15. Numerical Study On Gas Drainage Borehole Gas Flowrate In Yanma Coal Mine
16. Study On Borehole Sealing Technology Of Gas Drainage In Coal Seam
17. Research And Application Of Thickened Expansion Slurry Sealing Technology For Gas Extraction Borehole
18. Study On Sealing Parameters And Sealing Material Performance Of Gas Drainage Borehole
19. Study On Sealing Control Theory And Technology Of Gas Drainage Borehole
20. Study On Sealing Mechanism And Technology Of Quick-acting Bag Of Gas Drainage Borehole In Seam
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