Grids based on an even number of grid columns can suffer from too much symmetry if text and graphics are confined to individual or double grid columns throughout.
基于偶数的栅格可能会遭遇过于对称的困扰，假如文本和图形总是占据1 - 2个单元格的话。
2
State the number of lines of symmetry of the square.
写出该正方形对称线的数量。
3
The present paper reports the average nucleon number density in the intrinsic states of SU(3) of the Fermion Dynamical Symmetry Model (FDSM).