| 单词 | polygon |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔apothem〕The perpendicular distance from the center of a regular polygon to any of its sides.边心距：正多边形中心到其任意一条边的垂直距离美国传统〔center〕A point equidistant from the vertexes of a regular polygon.中心点，中枢：与一正多边形各角顶点等距的一点美国传统〔decagon〕A polygon with ten angles and ten sides.十边形：有十个角和十条边的多边形美国传统〔diagonal〕Joining two nonadjacent vertices of a polygon.对角线的：连接多边形任意两个不相邻顶点的直线的美国传统〔dihedral group〕The group of rotations and reflections of a regular polygon.二面角群：正多边形的反射和旋转群美国传统〔exterior angle〕The angle between any side of a polygon and an extended adjacent side.多边形的外角：多边形任何一边和它邻边的延长线所构成的角美国传统〔geodesic dome〕A domed or vaulted structure of lightweight straight elements that form interlocking polygons.网格球顶：由轻而直的线材构成且能形成连结多边形的圆顶或拱顶结构美国传统〔heptagon〕A polygon having seven sides.七边形：有七条边的多边形美国传统〔hexagon〕A polygon having six sides.六边形：有六个边的多边形美国传统〔interior angle〕The angle formed inside a polygon by two adjacent sides.内角：两个相邻的边在多边形内部形成的夹角美国传统〔isogon〕A polygon whose angles are equal.等角多边形：各角都相等的多边形美国传统〔nonagon〕A polygon with nine sides.九边形美国传统〔octagon〕A polygon with eight sides and eight angles.八边形，八角形：有八条边和八个角的多边形美国传统〔pentagon〕A polygon having five sides and five interior angles.五边形：有五条边和五个内角的多边形美国传统〔polygon〕Pentagons, hexagons, and octagons are all kinds of polygons.五边形、六边形和八边形都是多边形。韦氏高阶〔polygon〕Triangles and squares are polygons.三角形和正方形是多边形。剑桥高阶〔polyhedron〕A solid bounded by polygons.多面体：一个由多边形围成的立体美国传统〔prismoid〕A prismatoid having polygons with the same number of sides as bases, and faces that are parallelograms or trapezoids.平截头棱椎体：以边数相同的平面多边形为底面的，各侧面为平行四边形或不规则四边形的拟柱体美国传统〔radius〕A line segment that joins the center of a regular polygon with any of its vertices.将正多边形的中心与它的一任一顶点起的来的线段美国传统〔regular〕Having equal sides and equal angles. Used of polygons.等边等角的：具有等边等角的。用于多边形美国传统〔regular〕Having faces that are congruent regular polygons and congruent polyhedral angles. Used of polyhedrons.全等的：每个面都是全等正多角形和全等多面角的。用于多面体美国传统〔triangle〕The plane figure formed by connecting three points not in a straight line by straight line segments; a three-sided polygon.三角形：一种由直线线段连接不在一条直线上的三点形成的平面图形；三边图形美国传统 |
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