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通过对东滩煤矿３上Ａ煤赋存规律的研究，分析了３上Ａ煤对矿井采掘生产的影响，提出了对策和建议，并在生产实践中得到应用，取得明显效果。
Based on the research on the occurrence regularity of coal A in Dongtan Coal Mine 3, the influence of coal A on coal mining in No.3 coal mine is analyzed. The countermeasures and suggestions are put forward and applied in production practice, with obvious effects.