nonlinear LS非线性最小二乘nonlinearadj.非线性的nonlinearly clustering非线性聚簇nonlinearity detection非线性检测Nonlinear Bragg cavity非线性Bragg腔nonlinear aerodynamics非线性空气动力学nonlinear displacement非线性位移nonlinear transmission非线性传输nonlinear creep theory非线性蠕变理论nonlinear affine model非线性仿射模型nonlinear servo theory非线性伺服理论Nonlinear data fitting非线性数据拟合