片语
auxiliary contact blocks辅助接触块
auxiliary arcing contact过弧触头
auxiliary make contact辅助闭合触点
auxiliary break contact辅切断触点
secondary contact辅助触点
auxiliary switch contact刀闸辅助接点
auxiliary contact points辅助触点
circuit breaker auxiliary contact电路断路器辅助触点
auxiliary switch contact displacement辅助开关触点错位