They can also be purely in-memory objects with no backing store.

它们可以是一些纯粹的内存对象，只要不用于后备存储。

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It serves as the backing storage for the in-memory translation memory of a project.

它为项目的内存翻译记忆进行备份储存。

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The following code example shows how to read and write data using memory as a backing store.

下面的代码示例说明如何通过将内存用作备份来读取和写入数据。

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