line insulator

例句：

1. 1. The engineer used a line insulator to fix the broken wire.
   工程师使用一个线路绝缘子来固定断裂的电线。
2. 2.The line insulator is crucial for maintaining the integrity of the power grid.
   线路绝缘子对于维护电网的完整性至关重要。
3. 3.The line insulator was designed to withstand high voltage and protect the electrical equipment.
   线路绝缘子被设计用来承受高电压并保护电气设备。