This paper points out several problems of current researches on XML stream filtering, and USES keyword search method as a solution.

针对当前XML流过滤研究中存在的问题，使用关键字查询方法作为解决方案。

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But when chemicals are applied on your skin, they are absorbed straight into your blood stream without filtering of any kind, and no protection against the toxin.

但是当化学物质在你的皮肤上的使用，它们被吸收直接进入你的血液流，没有任何形式的过滤，也没有对抗毒素的保护。

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Text filtering is the process of taking an input stream of text and performing some conversion on the text before sending it to an output stream.

文本过滤指的是这样一个过程：获得文本的输入流，并在将文本发送给输出流之前对文本执行一些转换。

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