名词
中文翻译：连接器继电器同义词
同义词：
['connecting relay', 'relay switch', 'relay contactor']
例句：
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1. The power supply system needs to be properly connected to the mains.
电力供应系统需要正确连接到主电源。
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2. The relay switch is used to control the flow of electricity.
继电器开关用于控制电流的流动。
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3. The relay contactor ensures that the circuit remains closed during power outages.
继电器接触器确保在停电期间电路保持闭合。