XML as a format has a lot of nice properties; it is a perfectly general way of representing arbitrary data structures, and it is human readable (more or less).
XML作为一种格式具有许多优良的特性；它是表示任意数据结构的完美通用方法，并且它是人可读的(或多或少的)。
Then the general structure of the XSL style sheets is shown; the style sheets are used to transform the XML data to any desired output format.
然后，显示xsl样式表的通用结构，样式表用来将XML数据变换成任何期望的输出格式。
HDF is a general purpose library and file format for storing scientific data.
HDF是一个一般目的库和文件格式，用于存储科学数据。
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