自动[电路]断路器
automatic circuit breaker
auto-circuit breaker
自动电路断路器
automatic circuit breaker
ACB
电路自动切换
automatic circuit switching
自动电路切换
Automatic electric circuit switching
电动旁路阀门的改造
Improvement of electric-driven bypass valve
给水自动旁路装置
automatic feedwater by-pass
automatic feedwater bypass equipment