| 1. | A trapezoid is a quadrilateral with two parallel sides .
梯形是具有两平行边的四边形。 |
| 2. | Research on optimization process of quadrilateral mesh
四边形网格的优化处理研究 |
| 3. | A kite is a quadrilateral with one line of symmetry
风筝是个有一条对称线的四边形。 |
| 4. | Generation of contour in quadrilateral shell elements
四边形板壳单元等值线的简易生成 |
| 5. | Programming of isoperimetric quadrilateral element based on matlab
的四结点等参元的编程 |
| 6. | Moduli of quadrilaterals and substantial points
四边形的模与本质边界点 |
| 7. | A proposition of a double heart quadrilateral
关于双心四边形的一个命题 |
| 8. | Beautiful properties of complete quadrilateral
完全四边形的优美性质 |
| 9. | Two robust quadrilateral membrane elements
两个抗畸变的四边形膜元 |
| 10. | A new smoothed contour lines generating algorithm for quadrilateral meshes
光滑的等值线生成算法 |
