名词
中文翻译：接触开关
同义词：
['contactor', 'contact point']
例句：
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1. The contact switch is responsible fordetecting when the door is opened.
接触开关负责检测门是否被打开。
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2. Theengineer replaced the faulty contact switch witha new one.
工程师用一个新的接触开关替换了故障的开关。
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3. Thecontact switch is essential forensuring safe operation of the elevator.
接触开关对于确保电梯安全运行至关重要。