maintenance down time的用法和樣例：
例句
- The repair time for the system is the time to turn the backup into the commander node.
修復時間是把備份節點轉為指揮官節點的時間。 - Optimum film management on the Sagitta guarantees greater independence in label features and means that maintenance time is reduced for assembly cleaning.
最佳電影管理箭保證更大的獨立性在標籤的功能和手段，維修時間縮短為大會清洗。
