At first it makes a comprehensive analysis of distance headway, including safe distance headway and desired one.

首先综合分析了行车间距的特征，内容包括安全间距和期望间距等。

youdao

At first it makes a comprehensive analysis of distance headway, including safe distance headway and desired one.

首先综合分析了行车间距的特征，内容包括安全间距和期望间距等。

youdao