Drawing River-bed s Depth Contour by the Quadrilateral Method;
四边形法绘制水下河床等深线图
An Unstructured Automatic Quadrilateral Mesh Generation on Arbitrary Geometry;
一类非结构任意四边形网格自动生成
This paper presents an efficient algorithm for creating automatic quadrilateral mesh based on a recursive decomposition domain of quadrilateral elements.
基于区域递归分解算法是一种有效的四边形网格生成算法 ,能较好地运用于复杂的单连通和多连通图形区域 ,自动化程度高 。
On the other hand,the quality criterion of the quadrangle mesh is illuminated;and the paper ends with given examples.
基于分层发散的思想 ,详尽地阐述了有限元法前处理中的网格生成方法 ;介绍了分层发散的网格生成中的布点、点的存贮、网格的划分、四边形单元质量判断及局部调整等内容 ,并给出了实例。
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
A quadrilateral having no parallel sides.
没有平行边的四边形
parallelogram illusion
平行四边形错觉 平行四边形错觉
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。
A quadrilateral having two parallel sides.
梯形一个有两条平行边的四边形
Algorithm for smallest quadrangle encasing box of convex polygon
凸多边形最小面积四边形包围盒算法
A trapezoid is a quadrilateral with two parallel sides.
梯形是具有两平行边的四边形。
double link jib in parallelogram
平行四边形组合臂架
fundamental period parallelogram
原始周期平行四边形
parallel motion linkage
平行四边形悬挂装置
primitive period parallelogram
基本周期平行四边形
primitive parallelogram of period
周期的原始平行四边形
diagonal line of a complete quadrilateral
完全四边形的对角线
digital orthophoto quadrangles (DOQ's)
数字化正射摄影四边形
quadrilateral speed-time curve
四边形速度时间曲线
The base of the triangle coincides with one side of the square.
这三角形的底边与这四边形的一边相重合。
Having four sides and four angles;square or rectangular.
四边形的带有四条边或四个角的；长方形或正方形的
(in US) a quadrilateral with no parallel sides.
（在美国）没有平行边的四边形。