balances of oxygen element and carbon element
finite element and infinite element coupling model
finite element infinite element
the coupled element free Galerkin and finite element method
the coupling element free Galerkin and finite element method
2-dimensional axis symmetry
actinomorphy radial symmetry
auxiliary plane of symmetry
Axial symmetry
轴
轴向对称
轴对称性
轴对称结构
轴对称
中心对称
轴向封称
axis of hexagonal symmetry