Although Domino server uptime is excellent, there can be extended server down time (scheduled and unexpected) that can cause user frustration or annoyance.

尽管Domino服务器的正常运行时间很优秀，但是还存在扩展的服务器停机时间(计划内的和计划外的)，这会导致用户受挫或烦恼。

youdao

You are now able to perform scheduled maintenance activities on the Blade and SAP will not suffer any down time as a result of this activity.

现在能够在Blade上按计划执行维护活动，而不需要停止SAP。

youdao

But down in Nigeria if a meeting is scheduled at 1pm, that means the meeting will start any time between 1pm and 2pm.

但是在尼日尼亚，如果一场会议预定在下午1点举行，那就意味着这场会议将在下午1点到2点之间的任意时间举行。

youdao

For example, senior officials say the State Department asked Twitter to refrain for going down for periodic scheduled maintenance at this crucial time to ensure that the site continues to operate.

CNN: Officials: Social networking providing crucial info from Iran