研究设计及方法：研究人群是来自英国11个医院的2499名患急性冠脉综合症的病人。
Research design and methods: Cohort study involving 2499 patients with ACS recruited from 11 UK hospitals.
本文详细论述了作者在可视化过程建模语言、开发过程、设计方法的理论研究、工具开发及技术应用方面的工作。
This dissertation describes the author's theory research in Visual procedure modeling language, development process and design method, and tools developing and technical application work in detail.
研究了模型边界处理方法及复杂曲面局部特征设计方法。
A design methodology dealing with boundary and local features on the surface model is researched mainly.
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