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瑞米材料在煤矿生产过程中的实际应用效果及取得的经济效益,瑞米加固材料对矿井见煤点、破碎带的加固效果。
Ruimi material in the production process of coal in the practical application of the results and the economic benefits obtained, Ruimi reinforcement see coal point, broken belt reinforcement effect.