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.
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