名词
中文翻译：初级断路器
同义词：
['primary circuit breaker', 'primary fuse', 'primary switch']
例句：
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1. The primarybreaker in the electrical system is responsible for disconnecting the power supply when necessary.
电力系统中的初级断路器负责在必要时断开电源供应。
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2. During a power outage, the primary breaker is the first device to trip and prevent further damage.
在停电期间，初级断路器是第一个跳闸的设备，以防止进一步损坏。
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3.The primary breaker protects the entire electrical system from overheating and potential fire hazards.
初级断路器保护整个电气系统免受过热和潜在火灾危险。