bravais' space lattice

The Bravais lattice type and parameters of β-Si\-3N\-4 has been determined by using this method.

根据这一方法，测定了β－Ｓｉ３Ｎ４ 晶体的布拉菲点阵及参数。

The computer simulation of the extraction of the three-dimensional lattice;

空间点阵抽取过程的计算机模拟