三维的

In this article both stereo vision and line2laser scan sensor are integrated to CMM,according to this measuring system the bound2 aries or outlines of object are obtained by stereo vision and the ostensible data of object are achieved by line2laser scan sensor. Information fusion of multi2sensor can be utilized to segment 3D data、to abstract the geometry characteristic of the object、to construct the object modeling.

将立体视觉和线激光扫描传感器集成到三坐标测量机下，由立体视觉来获得物体的边界或轮廓信息、线激光扫描传感器获得物体表面的三维数据，利用多传感器的信息融合技术对三维数据进行分割，提取被测物体的几何特征，并在此基础上构建物体模型。

An approach to visualizing the 3D electromagnetic environment is presented by the multi layer of Marching Tetrahedra isosurfaces.

电磁环境三维可视化是目前虚拟战场环境中亟待解决的问题之一，提出多层等值面的方法来表现三维电磁环境。

An approach to visualizing the 3D electromagnetic environment is presented by the multilayer of Marching Tetrahedra isosurfaces.

电磁环境三维可视化是目前虚拟战场环境中亟待解决的问题之一，提出多层等值面的方法来表现三维电磁环境。

Three-dimensional (3D) structures of CNTs were firstly synthesized, including pillar-shaped arrays, a ring-like castle and a crucian carp without a tail and fins made of nanotubes.

首次制备了三维碳纳米管阵列，如三维柱状结构、类似环形城堡状和鱼形的图案。

The contents of this dissertation are as follows:(1). Mathematical models of zero-dimensional, quasi three-dimensional and full three-dimensional in flow path of turbo engine are provided.

本文主要包括如下内容：(1)针对涡轮发动机通流部分的仿真分别给出了零维、准三维和全三维数学模型。

In this article, a three-dimensional finite element model of large-scale vacuum transfer line is developed, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线管系的三维有限元分析模型。

In this article, a three-dimensional finite element model of four-branch-pipe-joint vacuum transfer line is set up, applying ANSYS program and using 3D solid element and shell element.

本文使用ANSYS程序，选用三维体单元和壳单元，建立了减压转油线五通管系的三维有限元分析模型。

At the beginning of the thesis, the structure of usually used radome is introduced and the parameters of electromagntic characters are described in Chapter Ⅰ; the different methods for analysis of the electromagnetic characters of radome are summarized in Chapter Ⅱ; the propagation of 3-D beam in free space is conducted in Chapter Ⅲ; then in Chapter Ⅳ, the 3-D Complex Ray Theory are analyzed and the characters of transmitted field of sum and difference beams through radome are studied, and the relative formulations of calculation are rekened; at last the electromagnetic characters of the ellipsoidal sandwich radome and the plane single-layered radome are discussed, and suggestions for optimization of electromagnetic properties of radome are given.

本文第一章介绍了常用雷达罩的结构和描述雷达罩电磁特性的参量，第二章概述了目前分析雷达罩电磁特性所采用的各种方法，第三章分析了三维波束在自由空间传输特性，第四章研究了三维复射线理论，并应用它分析了单脉冲和差波束穿过雷达罩透射场的特性，导出了有关计算公式，在第五章，通过大量的数值计算和实验研究，讨论了椭球形三层夹心状实用雷达罩和单层介质平板模拟雷达罩的电磁特性，并提供了雷达罩电气特性优化的建议。

Taking advantage of grid generation method, three -dimension grid of double circle blade channel and nozzle is generated.

运用网格生成技术的代数方法生成三维双圆弧叶栅通道和三维喷管物理网格。

In this paper, the finite-difference time-domain formation of Maxwell's equation is deduced and coded in perfectly matched layer in three-dimension cylindrical complex coordinates.

在三维柱坐系下推导了完全匹配层吸收边界条件的时域有限差分表达式，从而把 FDTD方法推广到完全三维柱坐标系中。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。