nonlinearityn.非线性nonlinearadj.非线性的nonlinear dynamic model非线性动力模式nonlinear finite dement非线性有限元nonlinear curve fitting非线性曲线拟合nonlinear pixel mapping非线性像素映射nonlinear light scatter非线性光散射Nonlinear editor system非线性编辑系统nonlinear electron flow非线性电子流nonlinear flexural wave非线性弯曲波nonlinear elastic model非线性弹性模型nonlinear PI controller非线性PI控制器