方程组 combined equations; coupled equations; equation group; equation set up; equations set; gleichungssystem system of equations; set of equations; simultaneous equations; system of equations
线性方程组 a system of simultaneous linear equations; lineares gleichungssystem linear system of equations; system of linear equations; set of linear equation; solving linear equations; system of linear equations
Small perturbation assumption was applied to linerarize the nonlinear equations at some trim points , then the stability of the system can be decided through eigen values analysis 模型由包括吊挂物在内的多个部分组成,以机体运动为主运动方程,吊挂物运动为辅助方程,考虑到各部分之间的耦合,为非线性数学方程组。
The numerical methods utilized in solving the set of mathematical equations involve calculating the spatial rate of change of variables , which means a priori grid point value information along the boundary outside the model domain has to be separately provided to set up time - dependent boundary conditions for computing the governing equations :计算有关数学方程组的数值方法,牵涉到变数在空间的分布变化,故此亦需要另外提供模式范围以外的网格点值,从而按时间设定边界条件,以完成基本方程组的运算。