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Keyword [Roadway roof structure]
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1. Research On Surrounding Rock Control Techniques Of Mining Roadways In High Mining Longwall Face
2. Study On Surrounding Rock Deformation Control Of Large Mining Height Roadway And Support Optimization
3. Ann Hill Coal Roadway Roof Structure Destroy Mechanism And Its Control
4. The Surrounding Rock Structure And Control Mechanism Of Mining Roadway At The Lower Part Of Pillar Boundary Of Close Coal Seams
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