back file

基本解釋

It is common practice to make a back-up file for our documents.
慣常做法是為正本另立一個后備檔案。
The back-end WSDL file is shown in Listing 2, and front-end in Listing 3.
后端 WSDL 文件顯示在清單 2中，前端文件顯示在清單 3中。
Approving changes made in the previous human task means that the process will automatically submit updated changes to the back-end file.
批準之前的人工任務(wù)中的更改意味著流程會自動將經(jīng)過更新的更改提交到后端文件。

The full-size USB port provides connectivity to existing equipment and SD card reader enables easy file transfer plus back-up when Internet access is not feasible.
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