例句與造句

1. While in case of point groups, Sch鰊flies symbol defines the symmetry elements of group unambiguously, the additional superscript for space group doesn't have any information about translational symmetry of space group ( lattice centering, translational components of axes and planes ), hence one needs to refer to special tables, containing information about correspondence between Sch鰊flies and Hermann Mauguin notation.
2. It's difficult to find lattice centering in a sentence. 用lattice centering造句挺難的