dielectric strength. 基本例句 介电强度 Cable insulation fault occurs frequently. Its location is complicated especially when the dielectric strength between two adjacent cores becomes low incomplete breakdown. 绝缘故障是线缆的常见故障之一，当两个绝缘线芯之间处于低绝缘或不完全击穿条件下其定位技术更为复杂。 cnki