二维的

With the development of molecular-beam epitaxy and microfabrication techniques, people can arrange the atoms and moleculars at will and make various zero-dimensional, one-dimensional and two-dimensional systems even single molecular devices.

随着分子束外延等超薄生长技术和精细束加工技术的不断发展和完善，使人们能够按照自己的意愿排列原子、分子，制备出各种各样的零维、一维和二维纳米结构，甚至单分子器件。

Based on the 2D image face localization result, we presented a novel optimization method to infer the optimal 3D shape and position parameters based on the unit quaternion.

基于前面的二维人脸定位算法，提出了一种基于四元向量的EM优化算法，用来快速鲁棒地求解三维模型的形状参数和六个位置参数。

Vertical NAD distributions could be well-fitted by β function and the two-dimennsional NAD distribution by the trend surface equation of relative crown height and relative crown radius.

NAD的水平和垂直分布均可用β分布函数表达，而相对冠高和冠径的二次趋势面表达式可很好地描述NAD二维空间分布。

The measuring method of 1-D thread image is discussed based on that of 2-D image. The points on tooth contour gathered by edge detection are fitted to lines, and the tooth's size can be calculate from fitted contour.

在原有二维螺纹图像测量理论的基础上，本文对一维图像的测量方法进行了探讨，根据螺纹轮廓的信号直接采集型值点参与拟合计算，以拟合轮廓进行尺寸计算。

Then the time-temperature shift principle is used to translate the relationships from three dimensions to two dimensions, so master curves are obtained regarding dynamic modules changing along with the frequency over 15 amount levels.

利用时温等效原理，将频率扫描试验得到的三维关系进行温－频转换，获得了跨越15个数量级的动态模量随频率变化的二维全频主曲线。

In chapter 5, we present the third-order finite volume method for the Shallow Water Equations on unstructured meshes.

第五章利用最小二乘思想，通过一次扩张模板来提高数值方法的精度，发展了在非结构网格上解二维浅水波方程的高精度有限体积法。

Taken into account the properties of arc plasma and electromagnetic, heat and radiative phenomena, commercial computational fluid dynamics software FLUENT has been adapted and extended by self-written routines to develop the 2-D magnetohydrodynamic model of air switching arc.

考虑电弧的物理参数以及电磁、热和辐射等现象，通过对商用计算流体力学软件FLUENT进行二次开发，建立了空气开关电弧等离子体的二维磁流体动力学数学模型。

Chapter four analyses the model that executed in chapter two and chapter three, and sets up the mature reseau analysis method of random convex polyhedral aggregate model of 2d and 3d.

第四章主要对第二章和第三章建立的模型进行有限元剖分工作，建立了一套成熟的二维、三维混凝土随机骨料模型的网格剖分方法。

In this method, a series of parallel sections are obtained from sample and their pictures were taken. The serial pictures are then positionally normalized and some subcellular structural objects are traced and 3D images of the structures are reconstructed.

在这种方法中，平行的截面被切出并被分别拍照，然后将这一系列的二维照片排列对位，最后追踪得到亚细胞水平的三维细胞结构图像。

Especially in uncalibrated system, the problem of how to get more and more accurate information only from images has been highlighted and widely focused on.

特别是在未定标系统中，如何仅仅从二维图像入手，获得更多、更准确的三维描述，已经成为此领域的重要热点之一，并受到人们日益广泛的重视。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。