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用作下部水平和井田侧翼矿量的开拓和采准以及出矿、通风,向工作地点运送自行设备(不预先拆卸)的汽车斜坡道,在地下矿山得到了大力推广。
Underground ramps are being promoted for the pioneering and quarrying of the lower level and the amount of side-field mine deposits, as well as for car ramps, ventilation and the delivery of own equipment (not to be disassembled) to the workplace.