1)drift conveyer,水平坑道运输机2)horizontal tunnel,水平坑道3)motor haulage level,电机车运输水平4)Horizontal transport,水平运输5)haulage level,运输水平6)horizontal belt conveyer,平带运输机
用法和例句
simple manually vertical hoisting method and horizontal transport method by pulley block are introduced, which may serve as reference for the same kind projects.
