quadrilateral

• A trapezoid is a quadrilateral with two parallel sides .
  梯形是具有两平行边的四边形。
• Research on optimization process of quadrilateral mesh
  四边形网格的优化处理研究
• A kite is a quadrilateral with one line of symmetry
  风筝是个有一条对称线的四边形。
• Generation of contour in quadrilateral shell elements
  四边形板壳单元等值线的简易生成
• Programming of isoperimetric quadrilateral element based on matlab
  的四结点等参元的编程
• Moduli of quadrilaterals and substantial points
  四边形的模与本质边界点
• A proposition of a double heart quadrilateral
  关于双心四边形的一个命题
• Beautiful properties of complete quadrilateral
  完全四边形的优美性质
• Two robust quadrilateral membrane elements
  两个抗畸变的四边形膜元
• A new smoothed contour lines generating algorithm for quadrilateral meshes
  光滑的等值线生成算法