一个十面体的面具有六个相等的正方形和八个相等的正三角形。
A cuboctahedron has as faces six equal squares and eight equal regular triangles.
有二十个正三角形面的二十面体。
每一个面是正三角形并且于每一个顶点处有三个面相交。
Each face is an equilateral triangle and three faces meet at each vertex.
从而将复杂的区域覆盖问题转化为简单的正三角形区域覆盖问题。
And then the complex area coverage problem is transformed into simple equilateral triangle coverage problem.
正三角形对儿童大小知觉的影响最大，正方形次之，正五边形最小。
The equilateral triangles influenced the children's size perception first, the exact squares secondly, the regular pentagons last.
给出从给定正方形中裁出边长(或面积)最大的正三角形的方法及其严格证明。
In this paper, we give a method for cutting out a maximal equilateral triangle from a square and a strict proof of this method.
用拟壳法建立了正三角形网格的三向扁锥面单层网壳的非线性动力学微分方程。
Using the method of simulated shell, non-linear dynamic differential equation of three-dimensional single-layer shallow lattice shell with equilateral triangle mesh is established.
用拟壳法建立了正三角形网格三向扁锥面单层网壳的轴对称非线性动力学基本方程。
By using the method simulated shells, the axisymmetrical non-linear dynamic equations of three-dimensional single-layer shallow conical lattice shells with equilateral triangle mesh are founded.
但无论入射波是什么极化方式，所设计单元按正三角形布阵时的传输特性都比正方形布阵方式稳定。
No matter what polarization of the incident electromagnetic wave, element's transmission characteristics for the regular triangle arrangement is more stable than that of square arrangement.
通过正三角形分析色环及孟赛尔色立体水平剖面，寻找三角色设计的配色方法，并应用于家具设计中。
Color ring and a level section of A. H. Munsell color solid were analysed with regular triangle. Schemes for trigonal color design suitable for furniture design were suggested.
分布盘上喷淋孔按正三角形或者正方形排列，挡板为圆形、方形或者三角形的平板、凸板或者锥形板。
The spray holes on the distribution disc are arranged according to a regular triangle or a square, and the baffle plate is a circular or square or triangular flat or convex or tapered plate.
在四层平行平板间并列分布九个PZT微驱动器，每层的三个驱动器摆放在一个正三角形的三个顶点上。
Nine PZT actuators are distributed among four platforms, and in each layer there are three PZT actuators placed on the vertexes of an equilateral triangle.
本文利用限制圆和限制区域，给出了费尔马点为三角点的判断条件，同时得到了特殊的正三角形的三角点的分布情。
By using boundary circle and restricted region, this paper gives a criterion for judging whether Fermat point is a triangular point.
初步分析了以正三角形栅格紧密排列组成的棒形燃料组件和堆芯的优越性。简要介绍了稠密栅在中小型核动力装置中的应用。
This paper preliminarily analyzed the advantage of a reactor core with rod type element in tight triangle lattice, and briefly introduced its application in small and medium nuclear power plants.
建立了正三角形钝体尾迹流流动模型，基于冷态实验对粗糙壁面钝体尾迹流进行了求解，并与光滑壁面钝体的解进行了比较。
Mathematical analysis and numerical simulation is performed for the flow field near a rough wall based on an improved theoretical model proposed for the problem.
建立了正三角形钝体尾迹流流动模型，基于冷态实验对粗糙壁面钝体尾迹流进行了求解，并与光滑壁面钝体的解进行了比较。
Mathematical analysis and numerical simulation is performed for the flow field near a rough wall based on an improved theoretical model proposed for the problem.
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