A new classification on the reduced cell and the criteria corresponding to the reducing treatment has been developed,and the relationships between the symmetry reduced cell and Bravais lattice are also given in the present paper.

• 为此；提出了一种新的约化胞分类法及其约化处理的判据；并给出了对称约化胞与Bravais点阵之间的对应关系.