downtime
n. 停机时间；停工期；不工作时间
近义词：stoppage，losttime，idletime，interruption，uptime，
英英释义
Noun
- a period of time when something (as a machine or factory) is not operating (especially as a result of malfunctions)
例句
用作名词(n.)
- Doing so will cause less downtime for end users.这样做可以减少最终用户的停机时间。
- In-place form version upgrade mechanisms help reduce downtime.就地表单版本升级机制有助于减少停机时间。