这涉及到对上面的组合标记追加每个后端系统的唯一标识符。

This involves appending the above composite tag with a unique identifier for each of the back-end systems.

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可以组合文件修订集并标记它们来制作发布，而发布又可以在任何时间签出以供重复构建代码的特定发布(SCM的要求)。

You can group sets of file revisions together and tag them to make releases that can be checked out at any time to repeatedly build specific releases of code (a requirement of SCM).

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对于月视图，可以将元素组合成标记。

For the month view, the elements may be grouped into tags.

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