insulating oil dielectric strength

例句：

1. 1. The insulating oil plays a crucial role in the electrical system.
   绝缘油在电气系统中起着至关重要的作用。
2. 2.The insulating oil dielectric strength is an important factor in determining the reliability of the electrical equipment.
   绝缘油的介电强度是决定电气设备可靠性的一个重要因素。
3. 3.The insulating oil dielectric strength must be maintained at a certain level to ensure safe operation of the electrical equipment.
   绝缘油的介电强度必须保持在一定水平，以确保电气设备的安全可靠运行。