在等待一段时间之后，重新开始，重复读取每个文件描述符。

After you wait for some amount of time, you start over again by repeatedly reading each file descriptor.

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通过三步移除不必要的重复读取(re - reads)。

Three steps to remove unnecessary re-reads.

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在相同事务下对“可重复读取”区域内数据的多次请求的结果是相同的，但能够带来更好的应用吞吐量。

With the "Repeatable Read" data region fetch requests issued multiple times within the same transaction will always produce the same result yielding better application throughput.

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