工学 产品设计理论与方法研究的历史 释 computer aided design; CAD 计算机辅助机械设计 设计者以计算机作为工具，以工程应用软件作为支撑平台，运用自身的知识和经验，对产品或工程进行方案构思、总体设计、工程分析、图形编辑和技术文档整理等设计活动的总称。
计算机应用 计算机辅助设计与图形学 释文 computer-aided mechanical design 计算机辅助机械设计
- external hemorrhoids
- external identifier
- external iliac artery
- external iliac vein
- external inductance
- external informativity
- external injury
- external input
- external inspection of oil and gas pipeline
- external inspection of special equipment
- external institution
- external integument
- external intercostal muscle
- external interrupt
- externalities of cultural industries
- externality
- externality of forestry
- externality of grassland
- externalization
- externalizing behavioral problem
- external key
- external law
- external law of composition
- external lightning protection device
- external lock