查询词典 three dimensional torus

In Chapter Two, we introduce the Dirac Fermion as the low energy excitations of the graphene, based on the field theory. We then discuss two-dimensional honeycomb lattice in the nearest-neighbor tight-binding model.

在第二章里，我们研究最近邻紧束缚模型下的二维蜂窝结构的电子态，然后讨论对应的场论模型，即一维Dirac Fermions 模型，最后引出有效质量方程。

In the media, girls are reduced to one-dimensional, wholly limited figurines.

在媒体上，女孩被缩略成一维的而且完全有限的雕像。

It is expected that the ceramic candle filter has an extensively application. A one-dimensional constant filtration flow model is established. Based on this model, the numerical calculation for the candle filter whose section is cylindrical and conical is carried out.

在高温高压条件下清除含尘气体中的微细尘粒，有效的方法是使用陶瓷过滤器，陶瓷过滤器是最具发展潜力的气固分离装置，除尘效率高达99.9 %，在高温气体净化领域有着广阔的应用前景。

In this paper,the welding technology of vast dimensional flange of telescopic joint at Soleyman Project and the welding methods of the heterogeneous steel s62U and0Cr13Ni5Mo were introduced in detail.

本文详细介绍了电站机组伸缩节超大尺寸法兰的焊接工艺及62U和0Cr13Ni5Mo 异种钢的焊接方法。

This specification sets forth the dimensional requirements for 150# steel flanges and flanged fittings.

这个规定设置了对于150磅钢法兰和法兰连接件的尺寸要求。

Two-dimensional theoretic results indicate that a flat-topped and steep-edged target pattern can be achieved in this scheme.

二维理论模拟结果表明采用该方案可获得顶部平坦边缘陡峭的焦斑，而且该方案无需仔细调整靶面的位置，实际应用较方便。

First of all two-dimensional bar code of the positioning and segmentation algorithm using Hough Transform and Sobel edge detection of the bar code images collected from the original image to effectively separate and then analyzes the barcode image through the optical system of the noise model, put forward a Calculation of point spread function of standard deviation of the algorithm uses Flourier transform adaptively select the threshold to remove noise caused by invalid border, bar code and thus be the basic module.

首先探讨了二维条码的定位与分割算法，利用Hough变换与Sobel边缘检测把条码图像从原始采集的图像中有效地分割出来然后分析了条码图像经过光学系统的噪声模型，提出了一种计算点扩展函数标准方差的算法采用Flourier变换自适应地选取阈值去除噪声导致的无效边界，从而得到条码的基本模块。

According to heat flux potential function and zero-dimensional thermal model, the cusp Catastrophe model is established and the ignition property is discussed. The cusp Catastrophe model, which considers furnace temperature as state parameter and airflow flux and air temperature as controlling parameter, can explain ignition and unsteady phenomenon well.

以热流势函数建立了零维尖点突变模型，突变模型以炉膛温度为状态变量﹑高温空气温度和空气量为控制变量的，可以较好地解释高温空气回转窑内着火的复杂现象和系统出现的不稳定状态。

We also summarized some effects which controlled their self-assembly behaviors.In chapter four, a series of PPEs with identical conjugated backbone but different side chains were synthesized and their two-dimensional assembly structure and chain foldings were studied by STM.

主要包括两方面内容：第四章，我们合成了一系列具有相同主链不同侧链的聚苯炔共轭聚合物，并在高定向热解石墨和辛基苯溶液的两相界面，采用STM在分子尺度观察了共轭聚合物链的二维组装结构及其链折叠的情况。

We also summarized some effects which controlled their self-assembly behaviors.In chapter four, a series of PPEs with identical conjugated backbone but different side chains were synthesized and their two-dimensional assembly structure and chain foldings were studied by STM.

主要包括两方面内容：第四章，我们合成了一系列具有相同主链不同侧链的聚苯炔共轭聚合物，并在高定向热解石墨和辛基苯溶液的两相界面，(来源：ABCd7论文94网www.abclunwen.com)采用STM在分子尺度观察了共轭聚合物链的二维组装结构及其链折叠的情况。

Alternatively, the con- trollers can use the synchronous rectifier itself or loss- less inductor current-sensing methods to provide overload protection with lower power dissipation.

另外，康威特罗勒斯可以使用同步整流器本身或亏损减少电感电流检测方法，以提供低功耗过载保护。

Mr. Dauber's other Schatz hangs in his home movie studio.

多伯把沙兹的另一件作品挂在家里的电影室。