circuit breaker

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(gè)斷電器以防止儀器超負(fù)荷運(yùn)轉(zhuǎn)。