名词
中文翻译：关闭的继电器
同义词：
['shutdown relay', 'cut-out relay']
例句：
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1.The power plant shut down the relay for maintenance.
电厂为了维护而关闭了继电器。
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2. The engineer used a cut-out relay to isolate the faulty circuit.
工程师使用一个切断继电器来隔离故障电路。
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3. During the emergency shutdown, all electrical systems were shut down relay.
在紧急停机时，所有电气系统都被关闭了。