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Keyword [Resistance of hydraulic support]
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1. Toughness And Crack Resistance Of Hydraulic Support Joint Research Q690 High-strength Steel Welding
2. Application Of Deep Hole Presplitting Blasting Technology In Treatment Of Thick Sandstone Roof In Coal Mine
3. Study On Roof Rock Fracture Structure And Control Of Fully Mechanized Coal Mining In Thick Coal Seam In Deep Mine
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