二十面体

基本解释 (translations)

icosahedron  ·  icosahedrons  ·  icosahedra

与二十面体相关的网络例句 [注：此内容来源于网络，仅供参考]

The morphologies of diamond include cube, cuboid, octahedron, cuboctahedron, twinned cuboctahedron, decahedron and icosahedron and ball-like diamond using SEM observation. The formation condition of the grains is discussed.

用SEM观察CVD金刚石晶粒形态主要有立方体、长方体、八面体、立方八面体、李晶八面体、十面体和二十面体颗粒以及球形金刚石，讨论了晶粒的形成条件。

The several shapes of diamond grains have been observed in SEM: truncated cube, octahedron, truncated cubo-octahedron, twinned cubo-octahedron, twinned regular decahedron and twinned regular icosahedron. Most of diamond grains are octahedron.

用扫描电子显微镜观察到多种外形的金刚石颗粒：截顶立方体、未截顶正八面体、截顶立方八面体、孪晶立方八面体、正十面体和正二十面体的金刚石颗粒。

Our results show that the duality of self-dual tetrahedral link is "trivial", and the duality of hexahedral and octahedral link as well as dodecahedral and icosahedral link are "nontrivial".

从构型角度考虑，四面体链环的自对偶是"平凡"的，六面体链环和八面体链环，十二面体和二十面体链环的对偶是"非平凡"的。

Gastaldi and co-workers have observed two types of contrasts in Al-Pd-Mn IQCs: black-white double-lobe and loop-shaped, by using X-ray topography, and the facetted dodecahedral pores by phase-sensitive radiography.

Gastaldi领导的小组在结合利用X射线形貌术以及相位敏感成像术研究Al-Pd-Mn二十面体准晶单晶中的缺陷时发现两种衬度，其中已知黑白双瓣衬度是由于准晶中的五角十二面体空洞引起，而对于环形衬度则除了知道退火行为不同于位错从而不太可能是位错圈外，基本上对其缺陷的几何及性质不甚了解。

Goldberg got a class of polyhedra which are icosahedral symmetry by appending hexagons on regular dodecahedron by rule in 1937. They are called Goldberg polyhedra which provides a new approach for polyhedral molecule design.

1937年，数学家Goldberg通过在正十二面体上有规律地添加六边形面得到一类具有二十面体对称性的多面体，即Goldberg多面体。

It appears as a single-shelled icosahedron with 112 characteristic two-layer spikes.

该病毒仅有单层衣壳，病毒离子呈二十面体对称，二十面体的十二个顶点均有双层突起。

A virus is a unit of infectious genetic material smaller than any bacteria and embodying properties placing it on the borderline between life and non-life. The vast majority of the virus capsid protein assembled into icosahedral symmetry of the structure. Caspar-Klug Theory has become a fundamental concept for the classification of icosahedral viral capsids based on the principle of quasi-equivalence.

二：病毒是比任何细菌都小的感染性遗传物质，介于生命与非生命之间的一类无细胞结构的生物，绝大多数病毒的衣壳蛋白装配成二十面体对称的结构，&准等价&原理是解决严格遵从二十面体对称性的病毒衣壳几何特征的有效而成熟的方法。

The truncated icosahedra have been prepared for the first time by prolonging the reaction time to 4 h.The XRD,SEM,TEM and Uv-vis technologies confirm the high shape difference between icosahedral gold nanocrystals and their truncated forms.

通过延长反应时间合成了一种类似足球的新型金纳米粒子—截角二十面体，研究结果表明，该粒子由二十个六边形和十二个五边形组成，截角面是{100}面。

A systematic analysis of the icosahedral hierarchic structure in the 3D icosahedral quasicrystal and its approximants have been made. There is an icosahedron at the center surrounded by 12 icosahedra. If two neighboring icosahedra are vertex-sharing, the multi-shell Mackay cluster consisting of 127 atoms will form. If two neighboring icosahedra penetrate into each other, the multi-shell Samson-Bergman-Pauling cluster consisting of 137 atoms will form.

系统地分析了三维二十面体准晶的近似晶体相中具有二十面体对称的等级结构，中心1个二十面体，周边12个二十面体，如两个相邻二十面体共顶点连接，得出的是由127个原子构成的Mackay球形原子簇；如两个二十面体互相穿插，得出的是由137个原子构成的Samson-Bergman-Pauling球形原子簇。

Our results show that the duality of self-dual tetrahedral link is "trivial", and the duality of hexahedral and octahedral link as well as dodecahedral and icosahedral link are "nontrivial".

从构型角度考虑，四面体链环的自对偶是&平凡&的，六面体链环和八面体链环，十二面体和二十面体链环的对偶是&非平凡&的。

与二十面体相关的网络解释 [注：此内容来源于网络，仅供参考]

icosahedral capsid：二十面体外壳

ichthyocholaotoxin 鱼胆毒素 | icosahedral capsid 二十面体外壳 | idiochromosome 性染色体

icosahedron capsid：二十面体

Icosahedron 二十面体 | Icosahedron capsid 二十面体 | ideal crystal 理想晶体

icosahedral：二十面体的

iconic model 图象模型 | icosahedral 二十面体的 | icosahedron 二十面体

Icosahedral symmetry：二十面体对称

正六面体,正八面体,正十二面体和正二十面体.在这些拓朴等价多面体中,若以一定数目的亚基排列成具有一定表面积的立方对称实体,以二十面体容积为最大,能包装更多的病毒核酸,所以病毒壳体多取二十面体对称 (icosahedral symmetry)结构.

icosahedral virion：二十面体病毒粒子

ichthyotoxin 鱼毒 | icosahedral virion 二十面体病毒粒子 | icsh 黄体生成素

icosahedral phase：二十面体物相

二色性|dichroism | 二十面体物相|icosahedral phase | 二维结构|two-dimentional structure

icosahedron：二十面体

二十面体(icosahedron) 一种有12个角顶及20个面的对成的多面体,其每一个面是一个等边三角形;经常用来描述病毒的结构. 相关条目 张大方 谢冬青 闵应骅 杨金民 郭卫锋 申煜湘 鲁春初

icosahedron：正二十面体

用分子动力学方法,模拟了三种具有壳对称构型,含309个原子的钯金属团簇的熔化行为.钯原子间作用势采用Sutton-Chen多体作用势能.三种壳对称构型分别为正八面体(Cubooctahedron),正十面体(Decahedron)和正二十面体(Icosahedron).通过对升温过程中的热力学性质的分析,

great icosahedron：大二十面体

great dodecahedron 大十二面体 | great icosahedron 大二十面体 | great sphere 大球(面)

ZUNI ICOSAHEDRON：进念二十面体

进念二十面体(Zuni Icosahedron)策划的"建筑是艺术节",将于今年9月1日-10月18日在香港文化中心隆重展开(届时恰逢香港文化中心成立二十周年),推出一系列有关艺术设计、建筑与及城市发展的精彩活动.