名词
中文翻译：Unknown
同义词：
['monitor', 'presence checker', 'presence logger']
例句：
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1. The presence monitor is usedto ensure that all employees are present duringmeetings.
出席监控器用于确保所有员工在会议期间在场。
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2. The presence monitor helps toprevent unauthorized access to the building.
出席监控器有助于防止未经授权进入大楼。
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3.The presence monitor records all incoming andoutgoing calls for security purposes.
出席监控器记录所有进出电话，以供安全目的。