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- trirectangular quadrilateral 三直角四边形
- A quadrilateral having no parallel sides. 没有平行边的四边形
- A quadrilateral having two parallel sides. 梯形一个有两条平行边的四边形
- A kite is a quadrilateral with one line of symmetry. 风筝是个有一条对称线的四边形。
- A trapezoid is a quadrilateral with two parallel sides. 梯形是具有两平行边的四边形。
- A light triangular or quadrilateral sail set over a gaff. 斜桁中帆下缘张在斜桁上的三角形或四边形轻帆
- A new mesh auto-generation algorithm of arbitrary quadrilateral is presented. 在继承已有研究成果的基础上,发展一种任意不规则区域全自动四边形网格划分方法。
- The method of reconstructing a trirectangular tetrahedron from a stereo projection made up of two complete quadrangles is put forward. 研究了体视投影的复原问题，提出了根据两个完全四点形为体视投影恢复三直角四面体的方法。
- 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。
- A quadrilateral or triangular sail set from the after part of the mainmast on a fore-and-aft rigged vessel. 主帆在船头船尾都装有帆的帆船上装在桅后部的呈四角形或三角形的帆
- Rannacher, R. Turek, S., Simple nonconforming quadrilateral stokes element, Numer. Methods for Partical Differential Equations, 8(1992) 97-111. 胡健伟;汤怀民;微分方程数值方法;科学出版社;北京;1999.
- A quadrilateral or triangular sail set from the after part of the mainmast on a fore - and - aft rigged vessel. 主帆在船头船尾都装有帆的帆船上装在桅后部的呈四角形或三角形的帆
- The new Quadrilateral Area Coordinate (QAC) method is a powerful tool to construct 2D finite element models. 四边形面积坐标(QAC)方法是新近提出的构造二维有限元模型的工具。
- Eight-noded curvilinear quadrilateral isoparametric elements were applied to model the surface of the structure. 计算中以八节点曲边四边形等参元模拟结构体表面。
- The problem of reconstruction of a stereo projection is studied. The method of reconstructing a trirectangular tetrahedron from a stereo projection made up of two complete quadrangles is put forward. 研究了体视投影的复原问题，提出了根据两个完全四点形为体视投影恢复三直角四面体的方法。
- The leaf is isobilateral, the stoma is quadrilateral and only distributes in lower epidermis. 摘要霍山石斛叶为等面叶，气孔四列型，仅分布于下表皮。
- Treat the well face as internal boundary. section the region with quadrilateral grid. 将井壁视为内边界，在空间上用任意四边形单元对求解区域进行剖分。
- Then some smoothing operations are taken to refine the initial quadrilateral meshes. 同时对生成的四边形网格进行一系列的质量改善操作。
- One quadrilateral is defined for each pair of vertices presented after the first pair. 一个四边形是由这一对顶点和前面一对顶点构成的。
- This paper presented an adjustable subdivision surface scheme based on quadrilateral meshes. 摘要提出了一种基于四边形网格的可调细分曲面造型方法。
