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The nonlinear least squares cost function was adopted and the numerator and denominator coefficients were estimated in a separated manner.

采用非线性最小二乘目标函数作为优化准则，分子和分母系数通过分离的方式进行估计。

The partial differential equations with singular coefficients are very important ones in the field of numerical mathematics.

摘要具有奇异系数的椭圆及抛物型偏微分方程是一类很重要的方程，早在二十世纪六十年代左右，许多的计算数学工作者就开始研究此类方程的数值方法及相应的数学理论。

The patial differential equations with singular coefficients are very important ones in the field of numerical mathematics.

具有奇异系数的椭圆及抛物偏微分方程是一类很重要的方程，最近十几年，计算数学工作者利用有限差分、有限元等方法对此类问题进行了深入的研究并得到了很好的结果。

Every harmonic of Fourier coefficients of boundary forces and displacements are obtained by numerical quadrature.

根据位移及边界力的连续条件，得到了圆柱壳开孔结构在各种载荷作用下的解。

Comparing some coefficients by complex images method with that by analytical formula or numerical quadrature, the computing method of the model is examined to be efficient and accurate.

通过计算考察基于复像方法的有关系数证明了该模型的准确性，并给出了不同入射方向的界面上刚性球体和弹性球壳的散射声场算例，对目标散射幅度的分布以及随角度的变化规律做了分析。

By analyzing the numerical value of the regression coefficients, we can know how these factors influence prices.

通过实证分析发现对我国股票的市场价格产生显著影响的因素。

Consequently this study improves accuracy of numerical value of the coefficients.

实测工程的计算分析表明，改进后的计算方法准确性大为提高。

First, we use modified ODI model and Monte Carlo method to discuss the diffusion coefficients of protein-like chain. It is shown D～N~.

首先运用了改进ODI模型和蒙特卡洛计算方法研究了类蛋白质分子的扩散系数，得到标度行为D～N~。

The influence of variation of measured distance over pins in new typed odontoid chain sprocket upon its meshing characteristics and relations of modification coefficients of sprocket have been studied.

研究了新型齿形链链轮量柱测量距的变化对其啮合特性的影响，以及量柱测量距与链轮变位系数的关系。

The results showed that there was good linear relation of cumulative evaporation with square root of evaporation time, and the coefficients of them had good relation with the open hole ratio, thus the two-factor function of cumulative evaporation was obtained.

累积蒸发量与时间平方根的线性关系符合Gardner的理论关系，而两者关系的系数又与覆膜开孔率之间存在良好的对数关系，从而得出了累积蒸发量的两因素函数关系。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。