十面体

For the first time, Icosahedral quasicrystals and decagonal quasicrystals were found to exist in GaFeCuSi, GaVNiSi an...

首次在GaFeCuSi合金、GaVNiSi合金以及GaCoCu合金中发现二十面体准晶和十次准晶。

The composites, using Al-11wt%Mg and A172Ni12Co16 decagonal quasicrystal as matrix and reinforced particles respectively, were fabricated by mechanical stirring method.

以Al-11wt%Mg合金为基体，十面体准晶相Al72Ni12Col6为增强颗粒，通过机械搅拌的方法制备Al72Ni12Col6/Al-11wt%Mg复合材料。

The results of the pair analysis technique show that the icosahedral short-range order may grow with the decrease of the temperature and may become more prevalent in the undercooled state.

我们的模拟结果表明金属熔体中的二十面体短程序随着温度的降低而增加，并在过冷液态中而占优势。

Zuni Icosahedron, founded in 1982, is a Hong Kong based non-profit charity arts organization in Hong Kong.

进念二十面体，成立於1982年，为香港注册的非营利慈善文化团体，以香港为基础，向面视界的实验艺术团体。

After additional testing and analysis of several hundred dimpled configurations and shapes, the icosahedron pattern with 20 triangular regions was developed.

在对几百种酒窝结构与形状进行了附加测试与分析之后，终于设计出一种二十面体的式样，其中每个面皆为三角形。

In Plato's "Symposium", Aristophanes argues that the origins of love lie in the search for symmetry, while Pythagoras and Theaetetus—who discovered the icosahedron, the geometric shape with 20 triangular faces—explored the symmetries of geometric figures.

在柏拉图的《会饮篇》中，阿里斯托芬提出爱的缘起就在于对对称的寻觅，而毕达哥拉斯和发现由二十个三角形面组成的二十面体的泰阿泰德则探究几何形体的对称。

High yield,well-defined gold nanocrystals with shape of icosahedron were synthesized by the rapid reduction of gold precursors with ethylene glycolin presence of polyunder hydrothermal condition for 1 h.Au icosahedron is one of multiple twinned particleswhich has 20 faces,each were enclosed by {111} facet.

采用水热法在乙二醇体系中成功的制备出了形状规则、尺寸为200-300nm的二十面体金纳米粒子，研究结果表明，所合成的纳米颗粒是面心立方晶型，每个晶面都是{111}面。

There are two stages in the collapse of CaSiO_3 perovskite under decompression: the breakage of SiO_6 octahedron and the breakage of CaO_(12) icosahedron.

钙钛矿型CaSiO_3解压缩成非晶态时，存在两个结构破坏阶段：破坏硅氧八面体和破坏钙氧二十面体。

Cytoplasmic polyhedrosis virus is an insect virus belonging to Reoviridae family, which is a group of segmented, double-stranded RNA icosahedral viruses.

质多角体病毒属呼肠孤病毒科，是具有十段双链RNA片段的二十面体球状病毒。

The numbers of clusters made up of 1551 and 1541 bonded pairs representing the non-crystal structure occupy predominate position and the small numbers of clusters made up of 1431, 1661 and 1441 bonded pairs coexist in the non-crystal system at 4×10〓K/s cooling rate, thus there exist a large number of icosahedra clusters in the non-crystal system. The numbers of clusters made up of 1421 bonded pairs corresponding to the fcc-like structure occupy predominate position and the small numbers of clusters made up of 1422 and 1551 bonded pairs coexist in the crystal system during the 4×10〓K/s cooling process, thus the system can form the regular fcc-like structure.

在4×10〓K/s的冷速下，标征体系非晶结构的五重对称键型1551和1541所形成的小团簇数量在非晶体系中占主导位置，同时还存在少量的1431、1441和1661等其它键型形成的小团簇，这样，体系中含有大量的二十面体团簇结构；在4×10〓K/s的冷速下，标征面心立方结构的1421键型所形成的小团簇数量在晶体中占第一位，同时还存在一定量的1422、1441和1661等其它类型的键对所形成的团簇，体系最终形成面心立方结构。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐