primary file

基本解释

where "doclet.toc.xml" is the primary file.
“doclet.toc.xml”是最主要的文件。
The primary file is unavailable. It must be restored or otherwise made available.
主文件不可用。必須還原該文件或用其它方法使之可用。
Recent applications have adopted XML as their primary file format but older applications rely on other formats, so you often end up with a mixture of data in new and old formats.
最近的應用程序已將 XML 作爲其主要的文件格式，而比較舊的應用程序依賴於其它格式，因此您最終常常得到新舊格式混郃的數據。

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