在某些情况中，或者采用某些工具的时候，对所生成的代码进行修改就立即使这个程序从元编程系统被删除。

In some instances and with some tools, modifying the generated code immediately removes the program from the purview of the metaprogramming system.

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该元数据存储了关于创建、版本和删除项的信息。

This metadata stores information about the creation, versioning, and deletion of items.

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另外，如果DC的计算机帐户包含其他页对象，则无法删除该计算机帐户的元数据。

Additionaly, the metadata of the computer account cannot be removed if the computer account of the DC contains another leaf object.

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