fullymechanizedface相关论文
为解决作业面过空巷时,液压支撑系统发生压架,过空巷项板超前垮落等问题,通过理论分析、数值模拟和工业性实验的方式,对某矿井 15303 ......
It is difficult to accurately calculate the lump coal rate in a fully mechanized mining face.Therefore,a numerical simul......