功率控制器自诊断检查
power controller self-diagnostic check
眼科检查诊断器械
diagnostic instrument for eyes
铲运机发动机电路断路器
scraper engine circuit breaker
电路断路开关
electrical disconnect switch
电路断路器分流跳闸线圈
circuit breaker shunt trip coil
电路断路器辅助触点
circuit breaker auxiliary contact