四面体

To fill the isosurface with tetrahedra, cubes either intersecting with or lying within the isosurface are decomposed by using the precomputed stencils.

然后，对栅格中所有位于等值面之内或与等值面相交的立方体，用预定义的模板分解成四面体单元。

In the microscopic level, the cation bonds (Rb-O and Cd-O) valences and the subsequent rotations of the SO4 tetrahedra can lead to the driving force of the ferroelectric behaviour.

在宏观水平上，非对称的离子键和硫酸根四面体的旋转是RbCdS铁电性起源的驱动力。

At first, a simple algebraic method is appied to generated O-H type three dimensional meshes, then the meshes are devided into tetrahedra meshes.

首先应用一种简单的代数方法生成了O-H型网格，然后，将其剖分为四面体网格，从而完成了简化航天飞机跨音速绕流的数值模拟。

A novel paddlewheel type compound 2 containing trinuclear cobalt cluster has been obtained. Co3 clusters are connected by PO4 tetrahedra and 4-pya ligands to form a 3D network structure.

另外，一个新奇的含有三核钴簇的桨轮状化合物2被合成，Co3簇被PO4四面体和4-pya配体连接成三维网状结构。

In GeS2-Ga2S3 glasses, the basic structural units forming the backbone ofthe network are GeS4/2 and GaS4/2 tetrahedra which are connected through a bridging sulfur to form a three-dimensional network.

在GeS_2-Ga_2S_3玻璃中，形成网络骨架的基本结构单元是GeS_(4／2)和GaS_(4／2)四面体，它们通过桥硫连接成三维空间网络。

It shows a novel type of layered structure, where dimers of distorted {CuO4} planes are connected by {CPO3} tetrahedra, forming an inorganic layer containing 4-, 8- and 14-member rings.

该化合物具有新型层状结构，由扭曲平面结构的{CuO4}共边形成的二核单元通过{CPO3}四面体连接起来，形成一个含有4-，8-，和14-元环的无机层。

The ESR data of 3f suggest that Cu〓 is in a distorted tetrahedral field, that is to say, Cu〓 is coordinated to three tertiaty nitrogen atoms and one chloride anion.

为了探测模型化合物中Cu〓的配位情况和几何构型，采用相同的方法合成和表征了杂双核化合物3f，ESR信号结合质谱信息表明杂双核化合物3f中，Cu〓是四配位的，即它与一个C1〓和三个叔铵氮原子配位而处于变形的四面体场中。

On the base of 3D CAD software's fast modeling and meshing function, three kinds of radomes is modeled and meshed by tetrahedron firstly. And then the coefficients of electric flux density are received by fast moment method based on VIE.

本文首先借助三维CAD软件几何建模技术及网格离散技术，建立了三种结构的天线罩实体模型并用四面体单元离散，接着利用快速VIE-MoM计算出天线罩罩体区域的体极化电流，最终得到在罩体影响下的天线的远场辐射特性。

In this article, we introduce the oriented volume concept of simple tetrahedral, and get the computation formula for polyhedron at last.

引入了简单四面体的有向体积概念，最后得多面体体积计算公式。

The title complexes both have the well-known α-Keggin structure, based on a central PO_4 (GeO_4) tetrahedron surrounded by 12 MoO_6 octahedra arrayed in four groups of three edge-shared MO_3O_(13) octahedra.

标题化合物具有大家熟悉的α-Keggin结构，中心由PO_4(GeO_4)四面体周围有12个MoO_6八面体分成四组排列，每三个共边组成Mo_3O_(13)簇。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了