方法构建累积正态分布函数的适当表达形式，对实验所得数据进行拟合，同时与常用的四参数方程拟合进行比较。
METHODS Construct proper accumulation normal distribution function form and fit with our experimental data, then compare with the common 4-parameter equation fitting.
方法：构建累积正态分布函数的适当表达形式，对作者实验室所获得的实例数据进行拟合，同时与常用的四参数方程拟合进行比较。
METHODS: Construct proper accumulation normal distribution function form and fit with our experimental data, then compare with the common 4-parameter equation fitting.
对四阶抛物型方程构造一族新的含参数隐式差分格式。
For solving four order parabolic equation, a new class of implicit different schemes containing parameters are constructed.
对四阶抛物型方程构造一族含参数高精度三层差分格式。
A family of high accurate and three layer difference schemes containing parameters are constructed for solving four order parabolic equation.
对四阶抛物型方程构造了一族含参数高精度三层差分格式。
A family of highly accurate and three layer difference schemes containing parameter are constructed for solving parabolic equation of four order.
根据运动和强度条件得出四联方程，用以确定差速器的主要几何参数。
On the basis of conditions of kinetic theory and strength theory, a group of differential equations are developed for calculating the primary parameters of the mon-slip differential.
机翼的运动方程可以写成四维一阶常微分方程，取广义气流速度和线性俯仰刚度作为分岔参数。
The monition equations of airfoil are written as the four dimensional first order differential equations. Taking airspeed and the linear part of pitching stiffness as the bifurcation parameters.
导出了椭圆齿轮抽油机的悬点运动方程和功率表达式，给出了一种四型机型的设计参数。
The equation of polished rod motion and the power expression of the new pumping unit are derived and the design parameters for a Model 4 unit are presented.
采用最小参数法求解四元数微分方程，优化了四元数实时更新算法。
When optimizing synchro update of the quaternion, the quaternion differential equation is calculated by using minimum parametric method.
合并不同阶的均匀化非傅立叶热传导方程，消去缩小时间尺度参数，得到四阶微分方程。
By combining various orders of homogenized non-Fourier heat conduction equations, the reduced time dependence is eliminated and the fourth-order differential equations are derived.
采用四结点四面体单元和八结点六面体等参数单元进行三维定常对流扩散方程的有限元分析。
The finite element analysis of three-dimensional steady-state convection-diffusion equation is given by using 4-node tetrahedral elements and 8-node hexahedral elements.
文中对用高斯·牛顿法拟合三参数和四参数极化曲线方程序求取电化学动力学参数提出了两种改进方法。
Based on the idea of curve fitting, the nonlinear least squares method (Gauss-Newton method) has been applied to estimate the complex parameters.
文中对用高斯·牛顿法拟合三参数和四参数极化曲线方程序求取电化学动力学参数提出了两种改进方法。
Based on the idea of curve fitting, the nonlinear least squares method (Gauss-Newton method) has been applied to estimate the complex parameters.
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