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Keyword [big section]
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1. Basic Research On Control Of Surrounding Rock In Big Section Safety Mining In Steep Seams
2. Controlled Cooling Of Big Section Bearing Steel Bar
3. Study On Surrounding Control Mechanism Of Great-depth And Big-section In Gob-side Entry Retaining
4. Destroy Mechanism Analysis Of Big Section Soft Rock Roadway And Research Of Engineering Application
5. Simulation And Study On Minimum Bedrock Safe Thickness Of Thin Bedrock Big Section Tunnel By UDEC
6. Optimization Research On Automation Control System Of Large Section Bar Of The SIGS
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