driving arm

• 驱动支架

driving arm的用法和样例：

例句

1. Remove the upper suspension arm nut and bolt at the axle bracket.
   从车轴支架上拆去上端悬吊臂螺帽和螺栓。
2. She has gotten rid of her leg brace and regained use of her left arm.
   她已不再用腿部支架，左臂也能重新活动。