operation over voltage

• 操作过电压

operation over voltage的用法和样例：

例句

1. A few protection types for VCB operation over-voltage are analyzed and compared, and some suggestions for selecting protection types in engineering design are given.
   分析比较了在高压厂用电系统中保护真空断路器操作过电压的几种方式，提出在工程设计中采用何种保护方式的建议。