Using Finite Element Method of Lines smash the area in semidiscretization with plane or axial symmetryelement 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；
2
The general layout and imagery of this entire design features reflection symmetry, yet each element individually holds a lot of uniqueness and lack of symmetry.
这个页面的整体布局和图像设计特点是反射对称。然而单独来看，每个元素又是独一无二的，不对称的。
3
This paper derives the relationship between the fundamental mechanical quantity in quantum mechanics and the generation element in symmetry transformation group.