back file

基本解释

It is common practice to make a back-up file for our documents.
惯常做法是为正本另立一个后备档案。
The back-end WSDL file is shown in Listing 2, and front-end in Listing 3.
后端 WSDL 文件显示在清单 2中，前端文件显示在清单 3中。
Approving changes made in the previous human task means that the process will automatically submit updated changes to the back-end file.
批准之前的人工任务中的更改意味着流程会自动将经过更新的更改提交到后端文件。

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