其它XSLT处理器可能更希望更改前缀，或者在更高的级别上定义它，而不是在每个生成的标记上定义它，但是意义是相同的。
Other XSLT processors may prefer to change the prefix, or define it at a higher level rather than on each generated tag, but the meaning will be the same.
遗憾的是，他们没有为 声明那些前缀提供任何语法，所以 XPath 自身没有象它按道理来说的那么有意义。
Unfortunately, they didn't provide any syntax for declaring those prefixes, so an XPath by itself is not as meaningful as it should be.
除了原始文档的作者外，名称空间前缀基本上对任何人都没有意义，依赖于名称空间前缀和URI之间的一致的一对一映射并不明智。
Namespace prefixes are basically meaningless to anyone except the author of the original document and relying on a constant one-to-one mapping of namespace prefixes to URIs is unwise at best.
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