二维的

ABSTRACT: The 3D space information in the 3D color scanner is obtained form the 2D image list.

三维激光彩色扫描仪中的三维空间信息是从二维图象序列中得到的。

The fatigue reliability analysis for the 16V240ZJB diesel engine crankshaft inserving DF4B internal-combustion locomotive were carried out in thisdissertation.Firstly,according to the fatigue loads of the crankshaft,the bendstress and torsion stress at danger zone in rated operation modes werecalculated respectively.The stress randomicity of the crankshaft was analyzedrelating operation modes of acceptance,and the probability distribution ofstresses were obtained with statistical analysis.

运用本文所提出的疲劳可靠性分析模型(干涉模型-Miner准则综合法及弯扭复合模型)和经分析简化得到的材料p-S-N曲线和p-Sa-Sm-N曲面，分别按一维、二维疲劳应力及弯扭复合应力三种情况对东风4B型内燃机车16V240ZJB柴油机曲轴进行了疲劳可靠性分析。

In the paper, the logarithmic transformation for the analytic solution on the space-time change of the tracer concentration during the instantaneous injection and the process of the one dimensional steady flow field and two-dimensional unsteady hydrodynamic dispersion is performed, and the linear equations have been obtained.

该文将描述瞬时投放示踪剂、一维稳定流场二维非稳定水动力弥散过程中的示踪剂浓度在时空上变化的解析解进行了对数变换，得到一直线方程。

Results 3D angiography provided useful information to treat symptoms of intracranial arterial stenosis,and also was useful to help the determination of projection angle of 2D angiography.

结果 三维重建成像图像立体逼真，能够清晰地显示颅内动脉狭窄的部位、形态、狭窄程度，且对二维脑血管影像的工作角度具有指导意义。

Using axonometric projection method ,the computer si mulation of the di mensional electrostaticfieldis realized through the planar projection transformation of three-di mensional coordinate.

采用轴测投影法，通过三维坐标的二维投影变换，实现空间静电场的计算机模

The values of ecological niche breadths of double dimension and niche overlaps in all kinds of functional groups were not as much as those of single dimension niche, yet natural enemies, in transgenic insect-resistance hybrid poplar 741 could be better adapted to environment than those in control.

各种功能类群的时－空二维生态位宽度和生态位重叠均不如单维生态位宽度和生态位重叠值大，但抗性株系天敌类群对环境的适应性优于对照。

In this thesis the one-dimensional STC scheme and the two-dimensional STC scheme in both Cartesian and general coordinates are constructed. The initial condition and boundary conditions are also discussed.

本文发展了一维STC格式、直角座标系和任意曲线座标系下的二维STC格式，并对STC格式特殊的初始条件和边界条件进行了探讨。

The frame of 28 or 29 is formed by two-dimensional highly undulated simple layers of (6,3) topology that catenate in a parallel fashion to give, for the first time, a three-dimensional overall network, instead that a usual two-dimensional one.

首次将二维高度起伏的具有(6， 3)拓扑结构的简单层，通过一种平行方式相互铰链，广延成一种三维聚合网络结构。

Two dimension mathematical model of the tube reactor for dimethyl ether synthesis from methanol was established The temperature and concentration profiles in axial and radial direction for this tube reactor with change of operating condition were obtained with finite difference method,so as to provide design data for developing largescale plant of synthesizing dimethyl ether from methano

通过对甲醇气相脱水制二甲醚反应特点的研究，提出了使用拟等温管式反应器的概念；并用二维数学模型进行了数学模拟；在该模型上进行了操作条件对催化床温度分布影响的模拟研究，从而提出了该反应器的结构尺寸，为甲醇气相脱水制二甲醚的大型化开发提供了设计依据。

The quasi-perfect and double quasi-perfect punctured binary array pairs are defined. Their properties and Fourier spectrum characters are studied. The existing combinatorial admissibility conditions are presented.

研究了最佳屏蔽二进阵列偶、准最佳屏蔽二进阵列偶和双准最佳屏蔽二进阵列偶之间的关系，特别是当阵列偶的第一维和第二维的周期均为奇数时，它们之间的相互变换关系。

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。