This indicates that all or most of the data has a single occurrence and is unique.
这表明所有数据或大多数数据只出现一次，是惟一的。
While this is a single occurrence in this sample, for sizing purposes, you should determine how often these tasks run during prime shift.
虽然在这个示例中只出现了一次，但为了分级目的，您应该确定这些任务在主要班次期间的运行频率。
Using the regular expression shown above, the following example replaces an occurrence of two consecutive identical words with a single occurrence of the same word.
通过使用上面显示的正则表达式，下面的示例可将两个连续相同的单词的匹配项替换为同一单词的单个匹配项。
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