查询词典 three dimensional

This paper takes standard straight-cut gear parameterization modeling for instance, introduces the method which is based on development of MDT technology and MDT three – dimensional modeling technology. This research provides three – dimensional entity modeling of parts with precise curve outline. And it demonstrates a practical method for similar situations as well.

本文以标准直齿圆柱齿轮的参数化建模为例，论述了采用MDT的二次开发技术及其本身的三维建模技术建立这类具有精确的曲线轮廓的零部件的三维实体模型，也为其它类似的零部件的三维建模提供了一种切实可行方法。

It has carried out a physical experiment building and a virtual laboratory of electromagnetic induction based on VRML, using 3D MAX and VRML to make the three dimensional virtual test equipment, and produces the strategy which could optimize the VRML document, unify VRML and script language JavaScript to realize the object alternately operation in the three dimensional scene ; Using the embed element to insert the virtual experimental file to the HTML documents and realizes the network issue of virtual experimental system, which enables the studier to carry on the browsing study through Internet. And finally this thesis gives an introduction of the test appraisal situation of this virtual experiment.

具体是基于VRML实现了一栋物理实验大楼及一个电磁感应虚拟实验室，利用3D MAX、VRML进行三维虚拟实验设备的构建，并给出了优化VRML文件的策略，结合VRML和脚本语言JavaScript实现三维场景中模型对象的交互操作，使用embed元素将虚拟实验文件嵌入到HTML文档中实现虚拟实验系统的网络发布，使学习者能通过Internet进行浏览学习，最后介绍了该虚拟实验系统的试用评价情况。

This article mainly simulates gradually damage destruction process of rock, major in determinationg the definition of rock three-dimensional damage tensor, simplify to the damage tensor and obtain its engineering calculation method, and obtains the basic expression form of equivalent stress by equivalent stress assumption, symmetrization to the actual stress, thus obtains construction relation of the festival principle of three-dimensional damage rock mass, finally couples elasticity- plasticity with damage in the finite element equation, with reference to elasticity-plasticity gradually degenerated method thought, simulates rock damage to advance gradually the destruction process in finite element method, draws up elasticity - plasticity and damage coupling two-dimension finite element procedure with the C language in the VC contact surface, by simulating experiment destroyed process, acquires destruction image and the axial load distortion curve of model, agreement with the experimental result.

本文主要模拟岩石渐进损伤破坏过程，确定岩石三维损伤张量的定义，对损伤张量进行简化计算并得出其工程计算方法，采用等效应力假设得出有效应力的基本表达形式，对有效应力进行对称化，得出节理损伤岩体的三维本构关系，在有限元方程中实现弹塑性和损伤耦合；借鉴弹塑性渐进退化方法的思想，采用有限元的方法模拟岩石损伤渐进破坏过程，用C++语言在VC界面编制了弹塑性和损伤耦合的二维有限元程序，通过模拟已有的实验破坏过程，得出模型的破坏图像和轴向荷载变形曲线，与实验结果基本一致。

The three dimensional animation form gradually towards to diversification, the three dimensional animation lighting design performance space more and more widely.

三维动画的表现形式逐步走向于多样化，三维动画灯光设计的表现空间也越来越广泛。

The new three-dimensional EUS (3D-EUS) can provide three-dimensional imaging and be used for volume measurement.

目的：探索3D-EUS的三维成像技术及其体积测量功能的可行性和准确性。

According to the generated hierarchical information between three-dimensional data,we can construct the surface triangular grid and execute three-dimensional modelling on the object.

采用模板匹配的方法识别用户手势，采用容差环的方法识别用户输入的物体轮廓，根据生成的三维数据之间的分层信息构建物体表面三角网格，对物体进行三维建模。

The main research contents and results are as follows:(1) Based on much geological data and the Surpac software,the three-dimensional visual model of Jinchuan Deposit had been built.It would distinctly and visually demonstrate the three-dimensional relationship among the Jinchuan ore-bearing ultrabasic rockbodies,the Jinchuan main orebodies and the Jinchuan main structure.

论文的主要研究内容及成果如下：(1)在收集和综合分析大量地质资料的基础上，利用Surpac软件，建立了矿床三维可视化模型，明晰、直观地表现了矿床含矿超基性岩体、主矿体、矿区主要构造之间的三维空间关系。

This text will introduce three-dimensional modelling techniques and CBR used in underframe design field, and the development of a set of three-dimensional intelligent underframe design system.

本文将三维造型技术与实例推理技术结合运用到机房底架设计领域，提出基于实例推理的底架设计流程，开发了一套底架三维智能设计系统。

At the same time, some defects are pointed out: present fabrics are not properly applied, and most of looms can't produce woven perform whose property is similar in different directions. Their shearing strength are lower, utilization of mechanical properties are also smaller;Although three-dimensional braided composites is of excellent integrated structure, normal braided fiber is traveled from internal to external surface, which is passed through braider and becomes three-dimensional structure. If the external surface is cut or rubbed , it's possible for the fiber to break down. In addition , the shape of perform is easily changed after it's finished . To deal with respective shortcomings and highlight their own advantages, we're searching a new weaving method which is the combination between weaving and braiding .

但它们各自也具有许多缺点：目前机织物适应性不够，大多数织机还不能加工三维各向同性的机制预型件，材料剪切性能较低，力学性能利用率低；三维编织复合材料虽然具有良好的结构整体性，但常用的编织都是纤维从内表面穿到外表面，即穿过编织件的断面成三维结构，用这种方法制成的结构，如果外表面受到摩擦或切割损伤，就有可能导致结构的解体，此外编织结构的织物易变形，所以我们需要考虑一种新的结构，能同时发挥各自优势，又能同时克服二者缺点，这就是机织与编织结构相结合的方法。

With the three axes circumrotation method, the position of the incident laser is unchanged, and the conversion from the complicate three-dimensional spatial position relation into a two-dimensional plane is realized, by adjusting the relative positions of the detector and the target with certain spatial conversion relation.

采用三轴旋转方式，保持入射光源的位置不变，调整探测器和待测目标的相对位置，配合一定的空间转换关系，实现了将复杂的三维空间位置关系转换到二维平面进行调节。

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。