名词
中文翻译：光电开关
同义词：
['photoelectric relay', 'photoelectric sensor例句：1. The photoelectric switch is used to detect when the door is opened.（光电开关用于检测门是否被打开。）']
例句：
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1. The photoelectric switch is used to detect when the door is opened.
光电开关用于检测门是否被打开。
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2.The photoelectric switch is a crucial component in many electronic devices.
光电开关是许多电子设备中至关重要的组件。
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3. The photoelectric switch is designed to protect against electrical shocks.
光电开关设计用来防止电击。