The invention relates to a roller type of vehicle bumper. The roller type of vehicle bumper is simple in structure, has good safety performance and is applicable to various vehicles.

一种滚轮式汽车保险杠，它结构简单，安全性好，适合各种汽车上安装。

youdao

Abstract: As an important safety system, the bumper is one of the most important components of vehicle structures.

摘要：作为安全防护装置，保险杠是现代汽车结构的重要组成部分之一。

youdao

These alerts will enable drivers to plan and share alternative travel routes, improve traveler safety and help transportation authorities better predict and reduce bumper-to-bumper traffic before it occurs through improved traffic signal timing, ramp metering and route planning.

ENGADGET: IBM shows off Smarter Traveler traffic prediction tool