Thus one has a triangle in, a tetrahedron in, etc.

因此在空间中是一个三角形，空间中是一个四面体，等等。

A tetrahedron with four equilateral triangular faces.

有四个等边三角形面的四面体。

This is the website for the Tetrahedron Information System.

这是四面体信息系统的网站。

So, this forms a tetrahedron, which forms the sp3 hybrid orbitals.

这就形成了一个四面体，它是由sp3杂化轨道形成的。

The internal structure of silica has a pyramid(tetrahedron) unit.

硅的内部结构是一个四面体。

The tetrahedron triangle module is a solid module with four planes;

四面三角体模块是有四 个平面的立体模块；

Play method: the tetrahedron triangle module toy reverses without barrier.

玩法：四面三角体模块玩具无障碍翻转。

Now you are equipped for the development of the magical RNA/DNA star tetrahedron!

现在你为不可思议的RNA/DNA星四面体整装好！

Now you are fully outfitted for the development of the magical RNA/DNA star tetrahedron!

现在你为不可思议的RNA/DNA星四面体完全整装好！

A new bank protection technology using tetrahedron like penetrating frame groups is introduced.

介绍一种新型护岸技术——四面六边透水框架群护岸。

In this so-called "fire tetrahedron", heat breaks the chemical bonds of the fuel's hydrocarbon chains.

在这个所谓的“燃烧四面体”中，热量打破了燃料的烃链上的化学键。

This paper presents the principle of secondary orientating by approximate tetrahedron for the first time.

本文在国内外首次提出并创建了近正四面体法二次定位原理。

The main structure unit of clay minerals contains silicon-oxygen tetrahedron and aluminium-oxygen octahedron.

其主要结构单元是硅一氧四面体和铝一氧八面体。

In all of these complexes, the coordination geometry aroud copper (I) is best described as pseudo-tetrahedron.

此类配合物中，铜(I)原子的构型均为畸变的四面体构型。

Optimize the Earth into a tetrahedron, with white, yellow, brown, black human RACES standing on each side of it.

地球优化成一个四面体，四面上分别站着白黄棕黑四色人种。

Its position is in the exact center of the Large Tetrahedron Structure, and it is the core of the crop circle ship.

它的位置是在大型四面体结构的正中心，和它是麦田圈船的核心。

And a fast LUT architecture based on tetrahedron interpolation is described, which is suitable for real time systems.

最后在四面体插值算法的基础上，提出了一种适合于实时应用的快速查找表结构。

The particle in the fly ash of low calcium is the silicon oxygen tetrahedron structure, one's own activation is very low.

低钙粉煤灰中的微粒为硅氧四面体结构，自身的活性很低。

Several stacking faults and a tetrahedron composed of two stacking faults in triangular were observed within the crystal.

在晶体中观察到多个层错和一个由两个层错三角形组成的层错四面体。

Experiment results show that using this new algorithm for tetrahedron, finite element model can provide well visual result.

实验表明，研究的新算法用于四面体单元的有限元模型，具有良好的切割处理效果。

In order to perform effective triangulation, the technology of tetrahedron-based triangulation of scattered dada was adopted.

为了实现有效的三角剖分，采用了基于空间体的散乱数据点的三角剖分技术。

The algorithm first construct a progressive mesh based on the source mesh and change the mesh into the simplest form, tetrahedron.

算法首先对原始三角网格构造一个累进网格，把三角网格简化成最简单的形式，四面体。

The calculation accuracy and the calculation efficiency of hexahedron mesh generated by author are higher than tetrahedron element.

所剖分的六面体单元的-算精度和计算效率都高于四面体单元。

This improved MT algorithm use standard tetrahedron as the initialized mesh unit instead of the tetrahedron dividing from the hexahedron.

该改进的MT算法用标准的正四面体单元取代传统的正六面体单元分割成的四面体单元作为MT算法的网格初始化单元。

Then the solid geometry model is entered into ANSYS to do the pre-treatment of FEA. It is disassembled by ten-noded tetrahedron elements.

将几何模型导入到有限元分析系统ANSYS做有限元分析的前处理，构建了以十节点四面体单元为基本单元的有限元计算模型。

Here, a special series of vortices, created by the constant gyrations of the different elements in the star tetrahedron, makes this acquisition possible.

这里，一特别的旋涡，由在星四面体不同元素持续不断的旋转所创造，使这获得变为可能。

The utility model relates to a tetrahedron triangle module toy which is formed by at least six tetrahedron triangle modules in a jointing combination way.

四面三角体模块玩具由至少六个四面三角体模块连体组合而成。

The valence-band offsets of such systems are calculated by frozen potential method and their Joint density of states has been computed by tetrahedron method.

在此基础上，用冻结势方法计算了该超晶格系统的价带带阶；用四面体方法计算了该系统的联合态密度。