请参见规范，了解不同标注的具体语法和语义，但相同事务和安全功能都有标注。

See the specification for specific syntax and semantics of the different annotations, but the same transactional and security features all have annotations.

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本文将简要介绍单词的分类与词类标注的相关内容，在此基础上介绍句法处理的一个计算机模型：上下文无关语法。

This paper briefly introduces the classification of words and part-of-speech tagging, then introduces a computer model of syntactic processing: context-free grammar.

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接着对文本韵律层级标注作了详细介绍，分析了句子的韵律层级结构，指出句子内部的停顿原则以及语法词信息的描述。

Then we introduce the text prosodic level marking in detail, analyze the prosodic level structure of sentences, point out the pause principle in sentences and the description of lexical word.

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