lighting switch bushing

例句：

1. 1.The lighting switch bushing is a crucial component in the electrical system.
   照明开关衬套是电气系统中至关重要的组成部分。
2. 2.The new lighting switch bushing has improved the reliability of our lighting system.
   新的照明开关衬套提高了我们照明系统的可靠性。
3. 3.The lighting switch bushing was replaced due to its wear and tear.
   由于磨损，照明开关衬套被更换了。