brush holder insulating bushing

例句：

1. 1. The brush holder insulatingbushing is essential for the operation ofthe vacuum cleaner.
   刷子支架绝缘套筒是吸尘器操作所必需的。
2. 2. The engineerused a brush holder insulating bushing to improvethe efficiency of the machine.
   工程师使用刷子支架绝缘套筒来提高机器的效率。
3. 3. The brush holder insulating bushing was designed to prevent damage to theelectrical wires during installation.
   刷子支架绝缘套筒的设计是为了在安装过程中防止对电线的损坏。