片语
NGon多边形;正多边形
equilateral polygon equilateral正多边形
equilateral semiregular concave polygon等边半正凹多边形
equilateral E polygon等边多边形
equilateral semiregular polygon等边半正多边形
equilateral polygon metric space度量空间
spherical equilateral polygon joint球面等边多边形拼接
regular polygon[数] 正多边形;正多角形