短语词组短语haulage e roadway 运输平巷floor haulage roadway 底板运输巷haulage roadway no 运输平巷Auxiliary haulage roadway 辅助运输大巷double track haulage roadway 双轨运输巷道main haulage roadway 运输大巷double e track haulage roadway 双轨运输巷道 返回 haulage roadway