电磁操作机构断路器
electromagnetic operation mechanism
断路器机构
circuit-breaker mechanism
断路器机构传动
citcuit-breaker transmission mechanism
断路器机构反措
countermeasure for circuit breaker mechanism
永磁机构断路器
circuit breaker with permanent magnetic mechanism
真空断路器机构
vacuum breaker’s mechanism
铲运机发动机电路断路器
scraper engine circuit breaker
磁场断路器的弧压试验
Tests on the Arc Voltage of Field Circuit Breaker
带防止闭合锁定的断路器
circuit breaker with lock-out preventing closing
电力断路器的诊断技术
Diagnosis Technology for Power Circuit Breaker