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Cartridge fuse is a fuse cased in a tube.
A blown fuse in north London delayed trains for over an hour.

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Open the tool →熔断 (róng duàn) means “Circuit breaker”.
熔断 is pronounced róng duàn in Mandarin Chinese.
“Circuit breaker” is 熔断 (róng duàn) in Chinese.
This page has 2 example sentences using 熔断, each with pinyin and an English translation.