提出了一种反求工程中基于局部基面参数化方法的点云数据边界特征的自动提取方法。
This paper presented a method for automatic edge points extraction of point data based on local base surface parameterization.
许多大气模式中虽然考虑了陆面水文过程，但与目前常用的水文模型相比，大气模式中的陆面参数化方案大都比较简单。
Although most GCMs include land surface hydrological processes, the land surface parameterization in GCMs are still simpler than the common used hydrological model.
利用I-DEAS软件本身的参数化设计功能，编写了摆线轮齿面接触有限元建模程序；
Modeling program of cycloid profile contact finite element was finished by use of parametric function in I-DEAS software.
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