时变系数 meaning in English

time-varying coefficient

Cubic spline functions polynomial are used directly to approximate the time - varying coefficients
利用三次样条基函数多项式逼近时变系数，将时变参数的佑计转化为定常参数的估计。
Secondly , overcoming drawback of single variable fitting ar models lacking of other variables acting on factor variable , a set of the trace formulas are given about the time - change coefficient matrixes of multivariable fitting ar models
2应用逐段线性化的方法推导出了多维ar （ r ）自适应模型时变系数矩阵的递推公式，克服了单变量ar （ r ）自适应模型没有考虑其他变元对因变元的作用的缺陷。
Based on an algorithm for solving the time - dependent coefficients nonlinear differential equations numerically , computer software is developed which has an easy - to - use interface . the dynamic response to elastic deformation and stress in key parts and forces acting on the bearings under various parameters and working conditions can be calculated
在研究求解该时变系数非线性微分方程组数值解法的基础上，开发了具有良好人机界面的仿真软件,可以计算出多种参数和工况条件下关键点的弹性位移、应力和运动副反力的变化规律。