Rapid Prototyping provides a new method of aiding to diagnose. A hollow three dimension model with complicated conicoid surface was built and the prototyping processing was analyzed.
建立一种表面为复杂二次曲面的空心三维实体模型，分析了该模型的快速原型方法?。
2
The conicoid fitting method used for transforming GPS elevation, and the basic structure and mathematic formulas of BP algorithm of neural networks are introduced briefly in this paper.
简要介绍了转换GPS高程的二次曲面拟合法，以及神经网络BP算法的基本结构和数学公式。
3
The experimental result shows that the normal pressure distribution on the surface of the model blade is a conicoid, the maximum of the normal pressure is in the middle of the model blade.