If you don't have a backup copy of the corrupt document readily available, make a copy of the corrupted file right away and store it on removable media.

如果你没有损坏文档的可读备份版本，需马上复制一份损坏文档的备份到可移动介质上。

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The document library returns a SAXSource (Listing 10) in case of a backup because a document library can hold lots of data.

文档库返回一个 SAXSource 以备备份时用（清单 10），因为一个文档库可以保存很多数据。

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The production management system includes three modules: document release, production controlment, data - gathering. Data backup mechanism is explained at the end of the chapter.

分析生产管理信息系统其中的公文发布、生产调度、数据采集三个模块并说明了其备份的解决方案。

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