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21. Study On Strata Behavior And Roof Control Of Super Large Height Fully-Mechanized Mining Face In DaHaiZe Coal Mine Deeper
22. Study On The Grouting Reinforcement Of Unfavorable Geological Bodies In Front Of High Working Face Considering Mining-induced Stress
23. Research On Supporting Technology And Equipment In Ultra Large Height Mining Face
24. Research On The Strata Behavior Characteristics And Control Of Ultra Large Height Mining Face In Shendong Mining Area
25. The Upsetting Process Analysis And Experimental Research Of The Preform Of U-Joints Of Steel Tie Rod
26. Study On Mechanism Of CO2 Coupling Fracturing Of Hard Gangue Layer In Working Face
27. Effect Of Inter-pass Heat Treatment On The Microstructure And Mechanical Properties Of Rare Earth Magnesium Alloy During Large Height-to-diameter Ratio Upsetting-extrusion
28. Effect Of Upsetting And Extrusion Deformation On The Microstructure And Mechanical Properties Of Mg-RE Alloy
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