摘要
用热力学方法引入描述晶体宏观物理性能的各阶张量并讨论了它们的对称性质．根据Ｎｅｕｍａｎｎ定理求得了各阶张量通过晶体点群生成对称操作约化后的矩阵表示，并提出了推求描述晶体宏观物理性能张量的约化矩阵的一般规则．
The author draws the tensors discribing crystal macroscopic physical properties by thermodynamic method,anddiscusses the symmetries of these tensors.Then, according to the Neumann theorem,studies the reduction of the matrices ofthe tensors using the generating operations of crystal point grouch. Furthermore,the general rules determining the reducedmatrices of the tensors discribing crystals are presented.
