cell insulator

例句：

1. 1.The cell insulator is an important component of the electrical system.
   电池隔离器是电气系统的重要组成部分。
2. 2. The insulator protects the wire from damage caused by the electric field.
   绝缘体保护电线免受电场造成的损害。
3. 3.The insulator is designed to prevent short circuits and overheating.
   绝缘体设计用来防止短路和过热。