摘要
通过对S＿CAD系统中的S＿EL语言的研究背景、设计原理和实现方法的介绍，描述了较为完整的工程语言知识表达模型，并用实例说明了S＿EL语言的应用。S＿EL语言是根据工程语言知识的特点，用MicrosoftVisualC／C＋＋语言开发的专用语言。该语言包括数据类型、表达式、语法描述等问容，用于表达工稷规范和工程专家经验知识，是工程智能CAD系统的重要组成部分。
Through the description of research environment, design principle andimplementation method of S- EL language in S- CAD system, a kind of expression model ofengineering language knowledge is introduced and demonstrated-. S- EL language is a speciallanguage combined with the characteristic of engineering language and developed with microsoftvisua C/C++, which consists of data structure types, expressions and grammar descriptions.and is used to express engineering experiences and standards. S- EL language is an importantportion of intelligent engineering CAD system.
出处
《西南交通大学学报》
EI
CSCD
北大核心
1999年第6期633-638,共6页
Journal of Southwest Jiaotong University
基金
国家"九五"重点科技攻关项目!K97-02-27
四川省重点科技攻关项目!97012050301
关键词
设计规范
工程设计
CAD
S-EL语言
知识表达
computer aided design
design specifications
intelligent CAD
knowledge expression
