Study on the Staggered Distance of the Same Coal Seam and the Layout of the Roadway in the Dadijing Coal Mine

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Study on the Staggered Distance of the Same Coal Seam and the Layout of the Roadway in the Dadijing Coal Mine

LI Cheng, LI Ya-Chun, JIANG Zong-Qi

Modern Mining . 2020, (04): 50 -55 .