trackless transportation

基本解释

Objective To study measures of reducing air pollution in the tunnels which are used the method of trackless transportation to construct.
目的研究降低无轨运输方式施工隧道中空气污染的措施。
The main methods of mucking in tunnel construction with drill and blast method is track-bound transportation system and trackless transportation.
钻爆法施工时，隧道出碴运输的主要方式为有轨运输和无轨运输。
At the same time, it points out several problems on developing of brakes for the coal mine underground trackless auxiliary transportation vehicles that should pay attention to.
同时指出了在开发研制煤矿井下无轨辅助运输车辆制动器时应注意的几个问题。