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1·This paper discuss the main technology of automatic extraction of index word and retrieval model.

本文论述了索引词的自动提取和检索模型所使用的主要技术进行了论述。

2·Students are shown eight sentences each with a grammar mistake and have to match the mistake with the index word in a grammar book.

学生先看八个句子，每个句子中有一处语法错误，学生必须把这些错误类型与语法书上的索引词相匹配。

3·Infinite capacity thesaurus, real-time, included the latest words, translation is never out of date, intelligent index word input, simply type the letter can see recommended words.

无限容量词库，实时收录最新词汇，翻译永不过时，单词输入智能索引，只需输入字母就能看到推荐单词。

4·If the character completes a word, the editor determines whether that word should be added to the index.

如果该字符完成了一个单词，编辑程序决定是否将该词添加到索引中。

5·If the character completes a word, it determines whether that word should be added to the index.

如果该字符完成了一个单词，编辑器决定是否将该词添加到索引中。

6·Each word is an index entry for the document it originates from, and the index entries are sorted by those words.

每个单词都是它所在文档的一个索引条目，索引条目是按这些单词存储的。

7·Most search engines use an inverted index — rather than compiling a list of every single Web page and all its words, for every single word, they compile a list of the places where it appears.

大部分搜索引擎使用一种倒排索引——不是针对每个单一的单词，为每个单一的网页及其上面的所有单词都编排一个目录，而是为每个单词出现的位置编排一个目录。

8·All this is done in the OPEN call to the table function; in the FETCH calls, the next word is retrieved from the set and returned as index entry.

这些都是在对表函数的OPEN调用中完成；在FETCH调用中，从集合中检索下一个单词并作为索引条目返回。

9·Thus, if you search for all texts that contain a specific word, DB2 only has to look up all the index entries for this word, and it will know exactly which texts qualify that way.

因此，如果要搜索包含特定单词的全部文本，DB 2只需在所有索引条目中查找这个单词，从而知道哪些文本符合这个条件。

10·The other type of tag is used when the word appearing in the index is not the same word that appears in the text.

如果索引中的单词没有出现在文本中，则会使用另外一种标记。