A type of formal grammar that works with a fixed number of basic categories, such as the sentence and the noun or noun phrase. A categorial grammar may serve as the basis for more powerful rules, such as those of Montague grammars.
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。