尽管中国取得了长足的进步，但在引导与控制系统、涡轮发动机、机床、医疗诊断与司法鉴定设备和计算机辅助设计与制造等方面还很落后。
Despite China's progress, it lags in guidance and control, turbine engines, machine tools, diagnostic and forensic equipment and computer-aided design and manufacturing.
本文叙述了柔性制造单元或系统中的柔性夹具及其计算机辅助设计的基本原理与方法。
This paper deals with the flexible fixture and its basic principle and method of computer aided design in flexible manufacturing cell or flexible manufacturing system.
冲裁模的计算机辅助设计与辅助制造（ CAD/ CAM） 系统由两部分组成，即工艺分析、计算和模具设计。
The CAD/CAM system of the blanking die consists of two parts, i. e. the process analysis and calculation and the die design.
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