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Keyword [Double-unit face]
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1. Study On Strata-pressure Behavior In Fully-mechanized Face Of Zhouyuanshan Coal Mine
2. Research And Application Of The High Production And Efficiency Mining Technique In Thin Coal Seam With Hard Parting Band Face Above Confined Aquifer
3. Study On Mining Technology Of Double-unit Face In Thin Seam
4. Research On Key Technology Of Double-unit And Filling Face In Zhaizhen Coal Mine
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