mainswitch

基本解释

• n.主开关

同根派生

英汉例句

• In addition, the mainswitch possesses the function of insulance detecting with total power network, the disrtibuting switch possesses the function of leakage current lock and one time reco...
  总开关设置有总电网绝缘监测;分开关设置有漏电闭锁和一次漏电自复电功能。