名词
中文翻译：非计划维护时间
同义词：
['unplanned maintenance', 'unscheduled repair time例句：1. The unexpected breakdown of the air conditioner caused a significant delay in our work schedule.（空调的意外故障导致我们的工作日程严重延误。）']
例句：
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1. The unexpected breakdown of the air conditioner caused a significant delay in our work schedule.
空调的意外故障导致我们的工作日程严重延误。
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2. During the unscheduled maintenance, we were unable to complete the project on time.
在非计划维护期间，我们无法按时完成项目。
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3.The company decided to postpone the scheduled meeting due to the unscheduled maintenance issue.
由于非计划维护问题，公司决定推迟原定会议。