Recent engine and drivetrain advances have improved the efficiency of standard-size vehicles.

近期的发动机及驱动系统的进步已经提到了标准尺寸车辆的效率。

youdao

This paper studies the drivetrain of single-engine sweeper special chassis, based on analysis of vehicle characteristics and operating features, to make a new single-engine drivetrain program.

本文旨在研究节能环保型单发动机清扫车专用底盘动力系统，在分析清扫车工作特点及性能要求的基础上，制定出新的单发动机动力系统方案。

youdao