insulated middle wire

例句：

1. 1. Theinsulated middle wire is crucial forthe electrical system's stability.
   绝缘中导线对于电气系统的稳定性至关重要。
2. 2. The insulated middle wire is used to prevent shortcircuits and protect the equipment.
   绝缘中导线用于防止短路和保护设备。
3. 3. The insulated middle wire is essential for maintainingthe integrity of the electrical system.
   绝缘中导线对于维护电气系统的完整性至关重要。