中文摘要：

研究格的相对凸子格的性质，给出相对凸子格的充要备件，在此基础上获得幂格的一些新的等价刻画。

英文摘要：

In this paper, we study properties of relative sufficient conditions of relative convex sublattice. On lattice are obtained. convex sublattice in lattice, and give necessany and this basis, some new characterizations of power