trailer type bituminous supply tank是什么意思

用法例句

The development of the bitumen tank car in the recent years and the orientation of the improvement in the future are described briefly.

简述了沥青罐车近年来的发展和今后的改进方向 ,同时简述了沥青、粘油两用罐车的设计依据和技术参

Optimal design of braking device of airport transportation trailer;

机场运输拖车制动装置的优化设计