1.
a polyhedron whose faces are trapeziums.
由不等边四边形面组成的多面体。
2.
a prismatoid whose bases are polygons having the same number of sides and whose other faces are trapezoids or parallelograms.
每个底部是边数相同的多面形且其它面是不等边四边形或平行四边形的旁面三角台。
3.
a parallelogram with four equal sides; an oblique-angled equilateral parallelogram.
四个边相等的平行四边形；不是直角的等边平行四边形。
4.
a parallelogram with adjacent sides of unequal lengths; an oblique-angled parallelogram with only the opposite sides equal.
相邻的边长度不相等的平行四边形；只有相对的边长度相等的非直角平行四边形。
5.
a quadrilateral whose opposite sides are both parallel and equal in length.
相对的边平行且长度相等的四边形。
6.
a tetrahedron with four equilateral triangular faces.
有四个等边三角形面的四面体。
7.
(geometry) a plane rectangle with four equal sides and four right angles; a four-sided regular polygon.
（几何）有四个相等的边和四个直角的平面长方形；有四个边的等边多角形。
8.
A quadrilateral having no parallel sides.
没有平行边的四边形
9.
A square is a figure with four equal sides and four right angles.
正方形是具有四个等边和四个直角的图形。
10.
A plane figure with four sides and four angles.
四边形有四个边和四个角的平面图形
11.
a three-sided regular polygon.
有三条边的等边多角形。
12.
scalene triangle
ph.1. 【数】不等边三角形,不规则三角形
13.
An equilateral triangle cannot be dissected into finitely many incongruent equilateral triangles.
等边三角形不能分成有限多个不全等的等边三角形。
14.
parallelogram illusion
平行四边形错觉 平行四边形错觉
15.
We may define a square as a rectangle with four equal sides.
我们可以把正方形定义为四边相等的长方形。
16.
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
17.
Eight-nodded curvilinear quadrilateral isoparametric shell element is used both in the FEM and in the BEM.
在有限元方法和边界元法中均采用了八结点曲面四边形等参单元。
18.
A polygon whose angles are equal.
等角多边形各角都相等的多边形