我们可以在序列化之前模糊化该数据，将数位循环左移一位，然后在反序列化之后复位。

We can obscure this data by rotating the bits once to the left before serialization, and then rotate them back after deserialization.

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救援服务器(salvager)—尽最大努力恢复位于文件服务器上的AFS卷内存储的所有数据。

Salvager server (salvager) - Provides best effort to recover any data stored in AFS volumes on a file server.

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一旦终止或重新启动实例或数据库，计数器便会复位。

Counters are reset when you stop and restart an instance or database.

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