Numerical resolution of a non-linear diffusion equation was used to fit the experimental data.
浓度剖面的实验数据由非线性扩散方程的数值解进行拟合。
Welding temperature field was analyzed by using non-linear curve fit method based on experiments.
建立了一种基于试验的非线性曲线拟合的新方法来分析焊接温度场。
Methods:Power model of non-linear regression was adopted to fit the curve of incidence of malaria, which result is contrast with the same model came from curve estimation method.
方法：对疟疾发病率曲线进行非线性过程的幂函数拟合，并与用曲线参数估计法的幂函数拟合结果进行对比。
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