名词
中文翻译：叫号系统
同义词：
['call system', 'page system']
例句：
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1.The hospital has a paging system to alert patients of emergencies.
医院有一个叫号系统来通知患者紧急情况。
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2.The paging system is used to keep track of the number of people in the room.
叫号系统用于跟踪房间里的人数。
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3. During the pandemic, many schools have implemented a digital paging system to reduce contact.
在疫情期间，许多学校实施了数字叫号系统以减少接触。