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Keyword [Coal seam group]
Result: 1 - 20 | Page: 1 of 4
1. Study On The Scope Of The "Three Zones" Of Gas Pressure Relief And Extraction In Coal Seam Group Mining
2. Study On The Surrounding Rock Controlling Technology Of Floor Roadway Under Closed Distance Coal Seam Group
3. Research Of Uphill Roadway Reasonable Arrangement And Support In The Gently Inclined Coal Seam Group Cross Mining
4. Research On The Extremely Close Coal Seam Group On Mining Roadway Optimization Arragement And Mining Sequence
5. Research On Dynamic Evolution Rules Of Mining-Induced Fractures And The Technology Of Gas Extraction In The Close-Distance Coal Seam Group
6. Study On Gas Migration Law And Extraction Of Lower Protective Layer Mining In Close Coal Seams
7. Study On The Leakage Law From The Surface To Goaf Of Shallow Coal Seam Group In Coal Mine
8. Study On The Mechanism And Application Of Pressure Relief Of Thin Coal Seam Mining As Upper Protective Seam In High Gas Coal Seams
9. Early Gas Extraction Method Study Of High Gassy Coal Seam Group
10. Study Of Lower Coal Seam Roadway Layout And Supporting On The Extremely Close Coal Seam Group
11. The Study On The Rules Of Overlying Strata Movement And Surrounding Rock Control Of Gob-side Entry Under Close-distance Thin Coal Seam Group Repeatedly Mining
12. Research On Fracture Distribution And Rainfall Infiltration Regularity Of Shallow Steeply Inclined Coal Seam Group
13. Study On Characteristics Of Overlying Strata Breaking And Roof Control Technology Of Coal Seam Group Mixed Mining Under Mountain
14. Technical Research On Shaft Uncovering The Coal Seam Group Which Is Soft And With High Outburst Risk
15. Study On Multiple Pressure Relief Effect And Relief Methane Drainage In Coal Seam Group Exploitation
16. Study Of Mining Gateroad Layout On The Extremely Close Coal Seam Group In Chenghe Mining Area
17. Research On High Drill Holes For Release-methanes Drainage With Wu Hushan Colliery
18. Research On Mining With Gangue Backfill Of Steeply Inclined Coal Seam Group Under Buildings
19. The Study Of Gas Migration Regularity And Control In Upper Coal Seam Mining Of Coal Seam Group
20. Research On Surrounding Deformatio Of Dynamic Pressure Roadway And Mining Sequenes Optimization
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