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采煤工作面使用新型复合背板，增强了对顶板的抗压强度，其弹性大，安全性能好，解决了背极支护强度低、消耗大、采煤成本高的难题。
The use of the new type of composite back plate in the coal mining face enhances the compressive strength of the roof, has the advantages of high elasticity and good safety performance, and solves the problems of low back support intensity, high consumption and high coal mining cost.