In this case, you can use a mapping to convert the message from one structure to another.

这种情况下，您可以使用一个映射来将消息从一种结构转换为另一种结构。

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Roundtripping is the process of mapping from one representation to another and back again.

往返是从一种表示映射到另一种表示，然后再映射回来的过程。

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Figure 5 shows the complete mapping from input columns to output columns.

图5显示了从输入列到输出列的完整映射。

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In an effort to help displaced hurricane victims and their families, ad hoc communities of Internet users are using mapping technologies from Google to track storm damage, analyze aerial photos and try to make sense of what little information is available.

FORBES: Magazine Article

From mapping sites to social networks, web-based software evolves much faster than desktop software, which often looks old-fashioned by comparison.

ECONOMIST: Monitor

Campaigners have pressed for a wide range of public data, from mapping information to MPs' expenses, to be made available on the web.

BBC: Web creator job 'beyond politics'