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
- ground form
- ground fractures disaster
- ground gamma-ray surveying
- ground geophysical prospecting methods for groundwater
- ground glass
- ground glasses screen
- ground gravity survey
- ground improvement
- ground improvement and reinforcement for hydraulic structures
- grounding
- grounding device
- grounding/earthing of railway telecommunication and signalling equipment
- grounding for EMC purpose
- Grounding Line
- grounding plane
- grounding resistance
- grounding system
- grounding system of hydropower station
- ground laboratory for flight tests
- ground laboratory of powerplant for flight test
- Ground Layer Adaptive Optics
- ground-layer adaptive optics
- ground level
- ground level event
- ground level event of solar cosmic ray