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Keyword [hard coal]
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1. Research On The Mechanism Of Rock Burst Occurring In "Three Hard" Coal Seam Of Datong Coal Mining Area
2. Study Of Pre-cracking Hard Coal By Water Infusion In Sub-level Caving Mining
3. Study Of Residual Gas Content Diversity Between Soft And Hard Coal Under The Condition Of Gas Predrainage From Virgin Coal Seam
4. Studies Of Mechanism Using Hydranlic Fracturing To Prevent And Control Of Coal Barsts Caused By Malti-seam Mining Interaction
5. Research On Mechanized Mining Technologies Of Hard Top Rock And Hard Coal Thin Seam In The Da Dougou Coal Mine
6. Law And Control Of Rockburst In Coal Pillar Under The Condition Of Special Thick And Hard Coal Seam In Hujiahe Coal Mine
7. Soft And Hard Coaladsorption-desorption Law Of Different Coal Rank And It’s Application
8. Study On Confined Blasting Control Mechanism Of Hard Coal Rock With High Safety And Efficiency And Test Analysis
9. Research On The Mechanism And Prevention Of Coal Burst Under The Condition Of Thick And Hard Coal-bearing Strata
10. The Research On Mechanism And Mitigation Of The Coal Bump Under The Situation With Hard Coal Body And Strong Roof
11. Research On Improving Recovery Rate Of Fully Mechanized Caving Face Under Hard Roof In First Coal Mine Of Pingshuo Company
12. Design And Research On Combined Cutting System Of Drum Shearer&High Pressure Water Jet
13. Application Study Of Deep Borehole Loose Blasting Through Strata In The Two1 Coal Seam Of No.2 Coal Mine Of Zhaogu
14. Study On Mechanism Of Coal And Gas Outburst Based On Gas-Driven
15. Research On Mechanism And Prevention Of Coal Bumps Under The Condition Of Hard Coal-rock Structure
16. Scale Effect Of Gas Desorption Rules Of Drill Cuttings Of The Anthracitic Soft And Hard Coal
17. Study On Mechanism And Application Of Hydraulic Fracturing In Hard Coal Seam
18. Influence Of Coal Structure On Difference Of Gas Irradiation Rules Between Soft Coal And Hard Coal
19. Research On Combustion Characteristics Of Fuels Made By Eucalyptus Sawdust And Hard Coal
20. Influence Of Microstructure On Gas Adsorption Difference Between Soft And Hard Coal
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