ruby_parser (RP) is a ruby parser written in pure ruby (utilizing racc--which does by default use a C extension).

ruby_parser(RP)是一个纯Ruby实现的Ruby语法分析器（借助了racc——它在缺省情况下使用C语言的扩展).

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Ruby already ships with a parser generator called RACC, a version of YACC (which is used to build ruby_parser, the first ruby parser written in ruby).

ruby已经有了一个叫做RACC的解析器生成器，是一个YACC的移植版本(被用来编写ruby _ parser，第一个用ruby写成的ruby解析器)。

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Objective: To observe the effectiveness of Radioda and Astragalus Codonopsis Compound (RACC) on the early injury of liver at highland after severe burn in rats.

目的：观察大鼠高原烧伤后，复方红景天参芪花粉制剂(RACC)对早期肝损害的防治作用。

youdao

Objective: To observe the effectiveness of Radioda and Astragalus Codonopsis Compound (RACC) on the early injury of liver at highland after severe burn in rats.

目的：观察大鼠高原烧伤后，复方红景天参芪花粉制剂(RACC)对早期肝损害的防治作用。

youdao