查询词典 two dimensional

Chapter IV presents the relation data model of tool database based on the analysis of available tool data, constructs the database management system of tool. With the family table technology of Pro/E, the three-dimensional parameterized model is built by programming, and the dynamic display of the three-dimensional graphics of tool is realized.

第四章对刀具数据进行了分析，给出了刀具数据库的关系数据模型，建立了刀具的数据库管理系统；利用Pro／E的簇表技术，通过编程对刀具进行三维参数化建模，并实现了刀具的三维图形动态显示。

In order to understand the swirl system deeply,the three-dimensional particle dynamic analyzer was used to measure the velocities of the steady turbulent cold flows in the swirl three-branched modular junction located at the end of the exhaust system,and three-dimensional numerical simulation of the flows was carried out by use of the ALE algorithm.

为了深入研究螺旋流排气系统的工作机理，作者利用三维粒子动态分析仪(3D-PDA)，对一始端螺旋流三分支模件的稳态湍流流场进行了测量，并用ALE法进行了三维流动数值模拟。

In order to reduce the loss of dimensional accuracy of stereolithography parts during the post-process, the stair-step effect and the relationship between stair-step effect and the parts dimensional accuracy were studied and analyzed.

研究和分析了光固化成形件台阶效应产生的原因以及对制件尺寸精度的影响，提出了根据表面几何特征进行相应的光斑补偿的方法。利用该方法成形的原型件会留有合理的打磨余量，从而可以在去除台阶效应的同时，保证制件的最终尺寸精

A currency formula of Laplace space solutions is obtained on the non-dimensional reservoir pressure and the non-dimensional wellborn pressure.

在尺度变换下具有&自相似性&和&标度不变性&，从有限认识无限的特殊规律的科学。

Exhibition hall is divided into four, nine galleries, one of electric and magnetic layer for the area, power and machinery area, math section, the universe and Space Pavilion, set up a high-voltage discharge, electric magnetic Gallery, bowls, a typical mechanical transmission, three-dimensional coordinates and other exhibits; the second floor for the sound and light booth, Applied Technology Pavilion, set up a light display, three-dimensional holographic images, sound simulation, laser laser, simulated driving and other exhibits; three for the Life and Health Pavilion, set up a false impression cylinder, fitness tests, brain and facial features, body systems, such as exhibits; underground floor for temporary exhibitions; in the Office of the Hebei Academy of Sciences set up a pavilion style.

展厅共分四层，九个展区，其中一层为电与磁展区、力与机械展区、数学展区、宇宙与航天展区，设置了高压放电、磁电廊、滚球、典型机械传动、三维坐标等展品；二层为声与光展区、应用技术展区，设置了光路展示、全息立体影像、声音模拟、激光内雕、模拟驾驶等展品；三层为生命与健康展区，设置了错觉滚筒、体能测试、大脑与五官、身体各系统等展品；地下一层为临时展览；中厅设置了河北院士风采展区。

We obtained the nasal deformation with three-dimensional reconstruction images and adjusted to separate the images of nasal cartilage, defined the form and structure of nasal deformation. Then we measured 10 cases of adult cadavers nasal alar, lateral and septal cartilage through modern mechanical measuring instruments, to obtain the elastic modulus of above three part structure of nasal cartilage, then to obtain more accurate nasal cartilage elastic modulus data through statistical analysis. At the same time, according to the relevant literature, we obtained nasal soft tissue biomechanical properties, mainly were elastic modulus and Poisson\'s ratio. Finally we established three-dimensional finite element analysis model of unilateral cleft lip nasal deformation, defined the model\'s constraint conditions and carried out biomechanical measurement and analysis of unilateral cleft lip nasal deformation.

将唇裂鼻畸形患者鼻部进行三维重建并调校，分离出外鼻软骨的影像，并对鼻部组织进行分层和重建，确定畸形鼻的形态和组织结构；通过现代力学测量仪器，对10例成人尸体鼻部的大翼、侧鼻和中隔软骨进行弹性模量的测量，获得上述三部分鼻部软骨结构的弹性模量数据，并通过统计学分析来获得较为准确的鼻部软骨结构的弹性模量数据，同时查阅相关文献，得到鼻部软组织的相关生物力学性质，主要为弹性模量和泊松比；建立单侧唇裂鼻畸形的畸形鼻部三维有限元分析模型，确定有限元分析的边界条件等，进行单侧唇裂鼻畸形的鼻部生物力学的测量和分析。

However, when the underlying lower-dimensional manifold is self-intersecting at some points, it's difficult to obtain local lower-dimensional structure from the Euclidean neighborhoods.

然而，当高维数据所逼近或近似的一个低维流形自相交时，欧氏距离意义上的邻域不能完全反映低维点的相邻关系，往往难以体现真实的局部线性结构。

Flow around elliptical microplane, which concerns with three-dimensional separation flow, was numerically studied by solving three-dimensional incompressible Navier-Stokes equations with finite volume method.

本文采用有限体积法，基于三维、不可压缩的Navier-Stokes方程组，在二次开发STAR-CD网格生成软件的基础上，对涉及椭圆形微型飞机的三维分离流进行了数值研究。

The reason of this defect was also provided in present study. Since numerical results about flow around elliptical microplane are seldom seen in formal publications, and to check efficiency of the three-dimensional solver we used, the three-dimensional separation flow around a spheroid was numerically simulated in present study, and results agree with those of Patel et al were derived.

由于目前极少能够找到正式发表的椭圆形微型飞机绕流的实验和数值模拟结果，作为三维程序验证，本文对旋转椭球体周围的三维分离流动进行了数值模拟，得到了与Patel等人一致的结果。

In this paper, the dynamic behavior of long-span space lattice structures subjected to multi-dimensional and multi-support excitation, as well as to multi-dimensional and simple-support excitation are thoroughly analyzed based upon time history method.

同时考虑地震动2个水平和1个竖直共3个平动分量，并考虑了地震动场的空间相关性，用时程分析法对大跨空间结构进行了多维多点输入和多维一致输入下的响应分析。

The witness also told the jury at the Royal Courts of Justice in London that he saw a paparazzo fighting with a member of the public who was trying to stop him taking pictures in the minutes before the emergency services arrived.

他还告诉在伦敦皇家法庭的陪审团，在急救服务到来之前，他当时看见一个狗仔队正和一群阻止他拍照的人打架。

The entire N／C program on a tape is made up of an accumulation of these successive data blocks.

纸带上的整个数控程序由这些连续数据单元连接而成。