A cuboctahedron has as faces six equal squares and eight equal regular triangles.
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2. 有二十个正三角形面的二十面体。
An icosahedron with twenty equilateral triangles as faces.
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3. 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.
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4. 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.
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5. 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.
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6. 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.
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7. 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.
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8. 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.
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9. 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.
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10. 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.
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11. 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.
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.
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.
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.
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.
