片语
semiregular spaceA semiregular space is a topological space whose regular open sets (sets that equal the interiors of their closures) form a base.
semiregular polyhedra半正多面体
semiregular set半正则紧集
semiregular sets半正则集
semiregular topology半正则拓扑
semiregular ring半正则环
semiregular graph半正则偶图