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.
研究结果表明，法向压力在模型铲刀表面呈二次曲面分布，在模型铲刀的中部取得最大值。
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?。
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