This paper has designed the mathematical description method and generating mechanism of dentritic table theoretically based on the principles of the design of the fourth-generation language.
应用第四代语言设计原理，从理论上定义了树状表的数学描述和生成机理，给出了面向设计的数学模型；
The result seemed so powerful that I considered it a "fourth generation computer language."
我想到把他叫做 "第四代电脑语言" 时 看起来很 powerful.
The aim is to inspect the functions and peculiarities of a general fourth generation language(4GL) by means of analysing a specific 4GL tools environment.
目的是想通过一个具体的第四代语言（4GL）工具环境的分析，来考虑第四代语言工具环境所应具有的功能与特征。
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