You define a language by defining the structure of its abstract syntax tree, its abstract grammar.
定义语言就是定义它的抽象句法树，它的抽象文法。
An algorithm of the extracting Lexicalized Tree Adjoining Grammar (LTAG) from Penn Chinese corpus was presented.
提出了一种从宾州中文语料库中自动提取词汇化树邻接文法(LTAG)的算法。
In order to preserve the two dimensional message of the character, a tree grammar is used.
为了保持汉字的二维结构信息，采用了树状文法。
The computer aided tax system described in this thesis is a semantic grammar system, with the semantic dependency tree as the intermediate language.
本文描述的计算机选案子系统采用语义文法结构，中间语言采用语义依存树的形式。
This paper introduces a new tree algorithm that is for deleting superfluous symbol and production in grammar, and gives a practical example to check the algorithm.
介绍了文法化简中消除无用符号和无用产生式的树型算法，并通过实例予以验证。
There are two representations in the functional syntactic analysis within systemic functional grammar. One is a box diagram; the other is a tree diagram.
系统功能语法中存在两种句法表示方式：一种是框形图，一种是树形图。
There are two representations in the functional syntactic analysis within systemic functional grammar. One is a box diagram; the other is a tree diagram.
系统功能语法中存在两种句法表示方式：一种是框形图，一种是树形图。
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