名词
中文翻译：极性继电器
同义词：
['polar relay', 'polarity switch', 'polarity relay switch']
例句：
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1. Thepolarity relay is essential for maintaining the stability of the power system.
极性继电器对于保持电力系统的稳定性至关重要。
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2.In this circuit, the polarity relay is used to detect and protect against faults in the electrical system.
在这个电路中，极性继电器用于检测和保护电气系统中的故障。
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3.The polarity relay is a crucial component in the design of power distribution systems.
极性继电器是配电系统设计中的关键组件。