同时，用非线性回归技术计算了旱地地膜穴播春小麦的水分敏感系数。
In the meantime, the water sensitive coefficient of the spring wheat was computed by nonlinear multiple regression methods.
提出了一种结合非线性回归技术的灰色GM(1,1)模型的改进模型。
An improved grey GM (1, 1) model using a technique of nonlinear regression is proposed.
应用线性回归技术和极大似然法原理，给出了概率曲线及其置信限的估计方法。
A method for estimating the curves and their confidence bounds is developed by a linear regression technique and a maximum likelihood principle.
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