名词短语
中文翻译：无人值守时间
同义词：
['standby time', 'standby period', 'standby hours']
例句：
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1.The company's standby unattended time is from 9:00 AM to 5:00 PM.
公司的无人值守时间为上午9点至下午5点。
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2. During the standby unattended time, the system will automatically switch to backup mode.
在无人值守时间内，系统将自动切换到备用模式。
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3. The engineers were instructed to monitor the standby unattended time for any potential issues.
工程师被指示在无人值守时间内监控任何潜在问题。