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Keyword [upper protective seam]
Result: 1 - 8 | Page: 1 of 1
1.
Study On Methane Controlling Technology Of Upper Protective Seam Mining Of5132(5) Working Face Of Xieyi Coal Mine
2.
Study On The Mechanism And Application Of Pressure Relief Of Thin Coal Seam Mining As Upper Protective Seam In High Gas Coal Seams
3.
Study On The Pressure Relief Mechanism Of Upper Protective Seam Mining And Gas Extraction Technology In Close Coal Seams
4.
Study On Methane Controlling Technology Of Upper Protective Seam Mining Of 5121(S)B9B Working Face Of Xieyi Coal Mine
5.
Research On Technology Of Pressure Relief And Permeability Increment Caused By Nearly Whole Rock Upper Protective Seam Mining
6.
Research On Space-time Cooperative Outburst Prevention Technology Of Coal And Gas Co-mining In Over-protective Seam Of Three Soft Coal Seam
7.
Research On Pressure Relief Effects And Mechanism Of Mining Thickness Of Upper Protective Seam
8.
Study On Comprehensive Gas Control Scheme For Upper Protective Seam Mining In Xiayukou Coal Mine
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