本文基于溶质和溶剂原子的特征态和特征晶格参量的新概念,以及特征晶格参量迭加定律——广义Vegard定律,导出了规则固溶体a-c曲线的一个标准方程:a=(1-c)a_(1,0)+ca_(2,J)+c(1-c)[(a_(1,J-a_(1,0))+(a_(2,J)-a_(2,0))];就a-c曲线极值存在的条件进行了讨论;并以Au-Ag系为例,介绍了一种最简单的连续固溶体价电子结构的分析方法。 Based on the new concepts of characteristic states and characteristic lattice parameters of solute and solvent atoms and the law of superposition of characteristic lattice parameters - the generalized Vegard’s law, a standard equation of ac curve of regular solid solution is derived: a = (1-c) a_ ⁢ 1, 0 + ca_ 2, J + c 1 - c ⁢ a_ 1, J - a - 1, 0 + a_ 2, J - a - 2, )]; The conditions for the existence of the extremal ac curve are discussed. Taking the Au-Ag system as an example, the simplest method for the analysis of the valence electron structure of the continuous solid solution is introduced.