a curve or surface whose equation (in Cartesian coordinates) is of the second degree
双语例句
An algorithm of feature surface recognition based on quadric surface fitting and geometry property was presented. 摘要提出了基于二次曲面拟合误差分析和几何属性分析的特征曲面识别算法。
Lastly, experiments were performed to evaluate the performance of this method in comparison with the methods using linear classifier and quadric surface. 最后，为了评估该方法的性能，分别使用线性分割器和二次曲面分割器的方法进行了对比实验。
