柯林斯詞典circuit breaker (circuit breakers) 1. N-COUNT A circuit breaker is a device which can stop the flow of electricity around a circuit by switching itself off if anything goes wrong. 斷電器 There is always an internal circuit breaker to protect the instrument from overload. 縂有一個斷電器以防止儀器超負荷運轉(zhuǎn)。 返回 circuit breaker劍橋詞典a safety device that stops the flow of current in an electrical circuit when there is a fault （電流）斷路器 比較fuse noun (SAFETY PART) 返回 circuit breaker