context free meaning in English

前后文无关的

Lfc is a formal specification language based on recursive functions defined on context free languages ( cfrf ) and supports the acquisition and validation of formal specification very well
同时lfc也是一种函数式语言，具有良好的数学基础、引用透明、无副作用、模式匹配等特点。
We combine syntactic parsing and semantic analysis , use the extended context free grammar to analyze chinese . each syntactic production has a precondition judge function
汉语的分析采用扩展的上下文无关文法，每一条句法产国防科学技术大学研究生院学位论文生式都对应一个前提判断函数。