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Keyword [Lower protective layer mining]
Result: 1 - 6 | Page: 1 of 1
1. Study On Gas Migration Law And Extraction Of Lower Protective Layer Mining In Close Coal Seams
2. Research On Xima Mine Minimum Distance Analysis Of Lower Protective Seam
3. Research On Pressure Relief Features And Gas Migration Regularity Of Single Thick Coal Seam Under Condition Of Lower Protective Layer Mining
4. Study On Fracture Propagation And Permeability Increasing Laws Of Overlying Strata By Mining Lower Protective Layer And Gas Drainage
5. Investigation On The Effect Of Overburden Deformation And Pressure Relief On The Lower Protective Layer Of Wulunshan Coal Mine
6. Research On Surrounding Rock Control Technology Of Roadway In Overlying Coal Seam Under Mining Condition Of Lower Protective Seam In Zhujixi Mine
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