中文摘要：

在建立一致最优可靠图与τ-优图之间的密切联系的基础上，对7个顶点所有图类的不可靠多项式的系数进行比较，从而确定了7个顶点所有图类一致最优可靠图的结构．为人们在边失效情形下网络的可靠性设计中寻找给定图类的一致最优可靠图提供了理论依据．

英文摘要：

The uniformly optimally reliable graph is a very important topic in network reliability research. In this paper, the coefficient of unreliable polynomial of graphs for seven vertices were studied, the uniformly optimally reliable graph were determined, accordingly.