利用康托·洛维奇-加权残值法求解矩形截面的扭转问题，其实质是将二维问题转化成一维问题，而后采用加权残值法得到问题的近似解。
The problem of torsion with rectangular section by means of Kantorovich MWR method is studied, whose aim is to convert two dimension into one dimension and derives approximate solution with MWR.
对于一般的设计，一维分析法只是一种近似的方法。
A dimensional analysis is studied as an approximate method for general design.
基于不可压和近似不可压粘弹性有限元法，对固体火箭发动机药柱进行了三维分析。
Three-dimension analysis of solid rocket motor grain was presented based on incompressible and nearly incompressible viscoelastic finite element method.
利用复射线近轴近似法分析二维圆柱形磁性天线罩的电磁传输特性。
The electromagnetic transmission performance of a 2-D cylindrical magnetic radome is analyzed by complex ray paraxial approximation method in this paper.
本文提出了一种计算三维结构瞬态温度、位移和热应力的近似方法——等效时间法。
The equivalent time method (ETM) for approximate calculation of the transient temperatures displacements and thermal stresses in 3-d structures is proposed in this paper.
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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