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1.
Study On The Theory And Its Application Of Upward Mining Of Left-Over Coal
2.
Study On Plugging Mechanism And Plug Removing Of Oil Well's Sand Control Area In Polymer Flooding Region
3.
Research On Movement And Deformation Rules Of Rock Strata Between Coal Seams In Caving Method Upward Mining Of Left-Over Coal With Numerical Simulation
4.
Study On Capacity Of Fly Ash Modified Landfill Clay Liner
5.
Study On Space-Time Relationship Between Strata Behaviors And Surface Deformation Of Fully Mechanized Top Coal Caving In Extra Thickness Seam
6.
Research On Upward Mining In Room-Column Goafs Of Shallow Coal Seam With Close Distance In Hanjiawan Coal Mine
7.
Study On Slope Stability Control Technology And Application Of Coordinated Open-pit And Underground Mining
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