给出了求解具有周期边界条件色散方程近似解的交替分组迭代法。
The alternating group iterative method for the dispersive equation with periodic boundary condition is presented.
由于移动最小二乘法的近似函数不一定精确地通过计算点，从而使本质边界条件的施加和集中载荷的处理变得复杂。
This is a disadvantage of EFGM as it suffers from problems in the imposition of essential boundary conditions and the application of point loads.
远场边界条件由无穷远处的条件近似代替。
The boundary condition at farfield is approximated by that at infinite.
根据曲板的边界条件给出三角级数的解析解和有限条法的近似解。
According to the boundary conditions of the curved slab, an analytical solution by trigonometric series and an approximate solution by method of finite strips have been given.
因而，文中还讨论了理想流体流动下游边界条件（7）的近似性并提出了进一步改进的设想。
Some reasons of the difference and the reliability of the down-stream boundary condition(7) are discussed.
用推广功的互等定理法，给出了求解复杂边界条件矩形板的弹性力学平面问题的一般近似解，并给出了计算实。
The method of reciprocal theorem is extended to find common probable solutions of plane problems of elasticity of the rectangular plate with various edge conditions.
在求解各向异性介质涂敷物体的电磁散射中，采用高阶各向异性阻抗边界条件可以简化求解过程，提高近似解的精度。
A novel spectral domain approach was adopted to derive higher-order tensor impedance boundary conditions (HOTIBC) for anisotropic coated planar conductor.
无网格伽辽金法(EFG)由于其近似函数的特殊性很难处理本质边界条件以及不连续介质边界条件。
Element free Galerkin method (EFG) is hard to handle nature boundary condition and the discontinuous medium boundary condition because of its special approximate function.
精确地满足裂纹表面的边界条件，其他的边界条件采用加权残数法近似地得到满足。
The boundary conditions on the crack surfaces are satisfied exactly. While the conditions on the other boundaries are satisfied approximately by using the method of weighted residuals.
给出了分子流扩散方程的边界条件，推导出入口压力在线性近似下方程的解。
The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.
当地水文地质条件复杂，提出了在一类边界条件下预计未来水头的近似解析解。
The hydrogeological conditions are complicated there. An approximate analytic solution has been derived to estimate the future groundwater head on the first kind boundaries.
通过边界附近解的近似形式，外部相关点上的流动变量值得到确定并强加相应的边界条件。
By the approximate form of solution near the boundary, the flow variables at the exterior dependent points can be evaluated, and boundary conditions can also be imposed at the same time.
因此，目前所有的解，均限于差分法及能量法所得的近似解。本文企图直接解微分方程，并满足包括自由角点的边界条件去求解。
As a consequence, the solutions now we have are all limited to such approximate ones as obtained by finite difference method, variational method and the method of finite elements.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
采用时间上二阶、空间上高阶近似的交错网格高阶差分公式求解三维弹性波位移-应力方程，并在计算边界处应用基于傍轴近似法得到的三维弹性波方程吸收边界条件。
Here, we use second-order, temporal - and high-order spatial finite-difference formulations with a staggered grid for discretization of the 3-d elastic wave equations of motion.
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