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1. Thefuse-disconnector is used toprotect the circuit from overheating.
保险丝断路器用于保护电路免受过热。
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2. Thefuse-disconnector was designed toprevent electrical fires.
保险丝断路器被设计来防止电气火灾。
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3. Thefuse-disconnectorfailed during the power outage, causing a temporary blackout.
保险丝断路器在停电期间失效，导致临时停电。