make-and-break中文什么意思

例句与用法

1. With the development of the science technology , the capacity of generator unit keeps increasing , devices with large power load are becoming more and more , the impact of their make - and - break at electric meshwork is very visible
   随着科学技术的发展，发电机组的单机容量不断增加，大功率负荷设备也越来越多，他们的投切对电网的影响越来越明显。