| 单词 | fivenines |
| 释义 | five nines noun [uncountable] (it 信息技术) 99.999 per cent, which is the percentage of the time that some computer systems are expected to work properly 五个九（即 99.999%，某些计算机系统预计的正常工作时间）◆most telephone companies are able to offer the five nines—or 99.999% reliability. 大部分电话公司能够提供“五个九”或者说 99.999% 的可靠性。◆a server with five nines availability 具有“五个九”可靠性的服务器 |
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