基于旋转机制，提出了一种具有负泊松比效应的、由部分内凹以及部分规则六边形组成的二维多胞材料力学模型；
A mechanical model of two-dimensional cellular materials with negative Poisson's ratio, composed of partly re-entrant and partly regular hexagons, was proposed based on rotation mechanism.
目前迭代函数系统中的变换多限于仿射变换，而仿射迭代函数系统对于区域的任意四边形不规则剖分情形是不能实现的。
At present, the transform in IFS is limit to affine transform. However, affine IFS is unable to do anything with the anomalous dissection on discretionary quadrangle area.
形成硅团簇表面的原子多构成空间五边形结构。
The atoms on the surface of silicon clusters often form space pentagon structure.
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。
This paper presents an efficient algorithm for creating automatic quadrilateral mesh based on a recursive decomposition domain of quadrilateral elements.
胰腺为不正的四边形，呈淡粉色，柔软而多具小叶的分支结构。
The pancreatic gland is also trapeziform, soft and ight pale pink. The structure of pancreatic gland has ramus with sublobes.
由机械将双线绞合编织成多绞状、六边形网目的网片，其双线绞合部分的长度应不小于5cm，以不破坏钢丝的防护镀层。
The machinery will be woven into double stranded twisted hexagonal shape, multi mesh mesh, the double stranded part length should be less than 5cm, the protective coating without damaging the wire.
本标准适用于机编双绞(或多绞)六边形钢丝网及组合体。
This standard is applied to machine make up twinning (or wring more) hexagon steel wire and assembly.
本标准适用于机编双绞(或多绞)六边形钢丝网及组合体。
This standard is applied to machine make up twinning (or wring more) hexagon steel wire and assembly.
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