使用隐含文件的缺点在于，在临时文件目录所在的位置中，看不到占用了文件系统的大临时文件。
Use implicit the defect of the file depends on, be in temporarily in the position that file directory is in, see less than taking up of file system big temporarily file.
为了安全起见，小李有时要将一些档案文件加上只读属性，甚至加上隐含属性。
To be on the safe side, xiao li will sometimes some files with read-only property, even with implicit attributes.
其原理是生成映象文件保存到一个隐含分区，以达到保护数据的目的。
The principle is that the system creates a mapping file and preserves it on a hidden hard disk partition so as to protect the data.
然而，如果仅限于HTML文档，我们就可以由这种文件的隐含结构建立一种虚拟模式。
However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files.
然而，如果仅限于HTML文档，我们就可以由这种文件的隐含结构建立一种虚拟模式。
However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files.
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