名词
中文翻译：Unknown
同义词：
['直流断路器，直流电路断路器，直流断路器']
例句：
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1.The DC circuit-breaker is used to protect the electrical system from overheating.
直流断路器用于保护电气系统免受过热。
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2.The DC circuit-breaker was designed to prevent power outages during storms.
直流断路器被设计成在暴风雨期间防止停电。
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3. The DC circuit-breaker has been upgraded to provide better protection for the electrical grid.
直流断路器已被升级，以更好地保护电网。