Check the wheel rim damaged.

检查轮缘有损伤。

The steering wheel rim has a flat lower edge.

方向盘的边缘有一个平坦的下边缘。

The roll forming process and mould design of wheel rim are introduced.

分析了滚形轮辋的制造工艺，并提出了合理的成形工艺和模具结构。

The motors are fitted inside each wheel while the wheel rim is designed to work as a propeller for cooling it off.

马达装有内的每个车轮，而车轮轮辋的设计工作作为一项螺旋桨冷却将它关闭。

The utility model has simple structure and overcomes the problem of wheel rim on the tyre with small tyre diameter.

本实用新型结构简单，克服了小轮径轮胎上瓦圈的困难。