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Keyword [The gas extraction]
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1. The Gas Extraction Next To The Drilling In Water Technology Research Of The Coal Rock
2. Study On The Technology Of Long-hole Pre-splitting Blast In Low-permeability Coal Seams To Increase Permeability
3. Gas Distribution Rule And Control Technology Research In Sihe Fully Mechanized Coal Face
4. The Deployment Of Well And The Analysis Of Effect About The Gas Extraction From Ground In Lishu Coal Mine Of Jixi Mining Area
5. Research On Gas (CBM) Occurrence Geological Controlling Factors And Grading Extraction Blocks Of Coal Seam 7~# In Suxian Mining Area
6. Research On Influence Of Air Leakage Of Gas Drainage Borehole On Gas Extraction
7. Study On Pressure Relief Effect And Application Of Protective Seam Mining In Soft Rock
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