electrically neutral

例句：

1. 1. The circuit is electricallyneutral, so there's no currentflowing through it.
   电路是电中性的，所以没有电流流过。
2. 2. The insulation of the wire prevents itfrom being electrically neutral.
   电线的绝缘层防止它成为电中性的。
3. 3. Thedevice is designed to be electrically neutral, ensuring safety during operation.
   该设备设计为电中性的，以确保操作过程中的安全性。