在我们继续之前，我要特别提一下，术语解析树和抽象语法树(或ast)描述了非常相似的语法结构。

I'll note before we go any further that the terms parse tree and abstract syntax tree (or AST) describe very similar grammatical structures.

youdao

主要分析了抽象语法树(ast)，讨论了磁盘文件的结构及ast的写入和复原技术。

With the emphasis on the abstraCt syntax tree (AST), the paper also discusses the structure of a disk file as well as the functions designed for saving and recovering the AST.

youdao

给出解析抽象语法树所使用的词法规则和语法规则，提出了解析gcc抽象语法树的方法。

Lexical rules and syntax rules used for parsing syntax trees are given, and a method for parsing GCC is proposed.

youdao