名词
中文翻译：服务开关
同义词：
['switch', 'service panel']
例句：
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1.The service switch on the wall controls the lights.
墙上的服务开关控制着灯光。
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2. The service switch is located in the control panel.
服务开关位于控制面板中。
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3. During power outages, we need to switch to backup power sources.
在停电期间，我们需要切换到备用电源。