a polynomial of the second degree

quadratic polynomial curve-fit was used to build the non-linear relationship among the total corrosion volume, pitting number, diameter-depth ratio and shape factor and the max pitting depth.

通过腐蚀模型建立点蚀形貌特征参数与对应总腐蚀体积的数据库，经数学分析后得到最大蚀坑深度与总腐蚀体积之间的非线性关系。

in the paper, the quadratic polynomial function smoothing-method is used to smooth the sampling data, which is proved to be effective in filtering the high frequency noise.

采用二次多项式滑动平滑法对采样数据进行平滑，有效地滤除了信号中的高频噪声。

results of the quadratic polynomial regression analysis show that the developing tendency of texture parameters is parallel with one of precipitation.

从实际的降水资料和纹理特征参数变化的回归分析结果来看，纹理特征参数的变化规律与降水量之间有较好的对应关系。

the approach starts from an analysis of spherical harmonics and finds out a quadratic polynomial form of environment mapping.

该方法从分析球面调和函数入手，首先得出环境贴图的二次多项式表达形式；

nonlinear multiple regression model on the structure activity relationship of ternary dissymmetric organic phosphate insecticide is obtained by quadratic polynomial stepwise regression method.

采用二次多项式逐步回归分析法建立了三元不对称有机磷酸酯类杀虫剂的多元非线性构效关系回归模型。

but for some special highly nonlinear structure, quadratic polynomial response surface method can「t get precise value of design point or can」t be convergent.

但是对于一些特殊的高度非线性功能函数，二次多项式响应面法不能準确获得验算点或者无法收敛。

conclusion the optimized matrix of kuhuang ointment can be achieved by nonlinear model based on quadratic polynomial regression equations, which could be the best formula of kuhuang ointment matrix.

结论基于二次多项式非线性模型拟合的回归方程，优选出的基质配比为苦黄软膏的最佳组方。

this paper establishes the standard fuzzy systems with partition of normal quadratic polynomial membership functions and normal trigonometric membership functions.

在标準模糊系统的基础上提出了以正规二次多项式和正规三角函数为基函数的两类标準模糊系统。

a quadratic polynomial describing the temperature distribution in width direction of workpieces welded with column-shaped pin was obtained by regression analyzing the experimental data.

通过对采用圆柱形搅拌针时垂直于焊缝方向上焊接试板温度数据的回归分析，得到了焊接试板宽度方向温度分布的二次解析式。

results:1)the curable duration varied with radioactivity in quadratic polynomial mode, and decreased with the increase of the tumor size.

结果：1）治愈期与核素注射剂量呈线性-二次关系，并随肿瘤增大而缩短；

further requirements: to achieve quadratic polynomial multiplication.

进一步要求：实现三元二次多项式的乘法。