英语语法分析

Using Finite Element Method of Lines smash the area in semidiscretization with plane or axial symmetry element which is develop by the postgraduate last session;

空间上采用有限元线法进行半离散化，采用已有的轴对称单元、平面单元；

A class of nonconforming finite elements are applied to hyperbolic equation with semidiscretization on anisotropic meshes, the optimal error estimates are derived.

在各向异性条件下，讨论了双曲型方程的一类非协调有限元逼近，给出了半离散格式下的最优误差佑计。