nonlinear regression model meaning in English

非线性回归模型

Geometric properties of ar nonlinear regression models
误差非线性回归模型的几何性质
The assessed results show that the prediction effect of artificial neutral networks model is better than that of multivariate nonlinear regression model , as well as the forecast effect of subsection model for water content of crude oil is better than that of united model
评价结果表明：神经网络模型预测效果优于多元非线性回归模型，原油含水率分段预测模型效果优于统一模型。