十二面体的

The atomic structure model of phase Zr2Ni containing icosahedron cluster in Zr-based amorphous alloys were constructed by computer programming.

用计算机编程构造了Zr基非晶合金包含二十面体原子团簇的Zr2Ni晶体相。

A new hexagonal approximant has been found in Al-Cr-Si alloys and its axial lattice parameter follows a τ''s power series τ=(1 √5/2 is the golden number relationship, implying that they are all decagonal approximants. A rule of the icosahedral chains in them has been found.

在Al-Cr-Si合金中发现一种新的六角近似相，它与几个结构已知的六角相的晶格常量呈黄金数τ=(1 √5/2的幂级数关系，说明它们都是十重准晶的近似相，并找出其中二十面体链的规律。

During water quenching of meltten these alloys in fused silica tubes, the icosahedral quasicrystal solidified first, then the decagonal quasicrystal, and finally the crystalline approximants.

将成分为〓〓的合金放在抽真空的石英玻璃管中熔融后水淬，二十面体准晶首先形成，接着是十重对称准晶，最后形成的是准晶的晶体近似相。

In this thesis, we have studied several kinds of stable icosahedral quasicrystalline alloys in different topics.

本文对几种稳定的二十面体准晶合金系列分别就不同方面进行了研究，主要内容如下

The principle and method of electron cryomicroscopy and computer three-dimensional reconstruction of icosahedral virus were described in detail, and some improvements were made in this thesis.

本文详细阐述了冷冻电子显微镜技术和二十面体病毒计算机三维重构技术的原理和方法，并对其做了一些改进。

In the second chapter, we discussed the influence of the range of inter-atomic potential on thestability of icosahedral clusters.

第二章我们研究了原子间相互作用势势程对二十面体团簇稳定性的影响。

On the other hand, the Ag42In42Ca16 icosahedral quasicrystal is stable both chemically and structurally under the same conditions.

在相同条件下，二十面体准晶Ag42In42Ca16保持不变，具有高的结构和化学稳定性。

C60 molecule is an icosahedral and has a symmetry of Ih,which consists of s...

C60分子是一个由60个等价碳原子构成的截面二十面体，具有点群对称Ih。

The measurement is simulated by ""regular icosahedron "" method, utilizing the direct current moment electric motor and the photoelectrical axis angle encoder, the rotation of the shot carrier and the CCD camera is completed, and can orientation the rotating angle, so that the system can make the CCD camera to measure the square diagraph in 16 independent projections.

该系统的研制是利用"正二十面体"方法进行模拟，直流力矩电动机和光电轴角编码器配合使用，完成载物台和CCD相机的旋转运动和角度定位，使CCD相机能够实现对十六个独立方向上的投影测量。

In the highly undercooled melt, a roughening transition from the lateral to continuous growth mode was found.

在过冷 Al72Ni12Co16十面体准晶合金中发现沿十次轴方向的连续生长和沿二次轴方向的侧向生长的不同生长机制。

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