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.
目的研究降低無軌運輸方式施工隧道中空氣汙染的措施。
The main methods of mucking in tunnel construction with drill and blast method is track-bound transportation system and trackless transportation.
鑽爆法施工時，隧道出碴運輸的主要方式爲有軌運輸和無軌運輸。
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.
同時指出了在開發研制煤鑛井下無軌輔助運輸車輛制動器時應注意的幾個問題。