feeder insulator

例句：

1. 1.The engineer used a special feeder insulator to repair the damaged wire.
   工程师使用一种特殊的馈线绝缘子来修复损坏的电线。
2. 2. The new design of the feeder insulator has greatly improved its performance.
   新型馈线绝缘子的设计理念大大提高了其性能。
3. 3. The engineer carefully inspected the feeder insulator before installation.
   工程师在安装前仔细检查了馈线绝缘子。