查询词典 CAD

When CAD technique gets involved, FDTD method makes a large pace toward its practicableness.

CAD技术的介入使FDTD方法向实用化方向迈出了一大步。

This paper introduces the concept of automated intelligent tire design as basis, and then systemically presents the general framework of CAD 3-D digital tire model design platform. Its modules include the demand representation, demand preanalysis, product list generation, product list modeling, testing, tires knowledge-base and tire parts-base. The realizing process and key techniques of the product list modeling module are described, including calculation principle of groove section and groove modeling scheme ,and so on. This paper also introduces an improved algorithm of calculating groove centerline. Finally CATIA platform and VBA toolkit-based tire design system is established under detailed demand representation type.

在提出自动化智能轮胎设计概念基础上，系统地阐述了计算机辅助设计三维轮胎数字化模型开发设计平台的整体架构，包括需求表示、需求分析预处理、产品清单生成、产品清单造型、产品检验、轮胎知识库和轮胎零件库等模块；叙述了数字轮胎设计造型模块的实现过程和关键技术，包括花纹沟截面计算原理和各种花纹沟的造型方案等，同时，还提出了一种改进的计算花纹沟中心线的算法；最后基于CATIA三维造型平台和自动化语言VBA二次开发工具实现了在详细需求表示类型下的轮胎设计系统。

Preoperatively and postoperatively computed tomographic scanning was performed in every patient. For the CAD treatment group, firstly, the 3D graph of the patient's skull was built based on the CT data using the reconstructing function of Mimics 8.11. Then the 3D file was imported to Geomagic 4.0. The injury lateral was resected and replaced by the mirror of the intact side, so an intact skull was generated at last. Consequently, a model was manufactured in a technical machine. The last step was to prebend the titanium mesh on the model.

CAD/CAM治疗组是利用术前诊断CT，将DICOM格式CT数据输入图像处理软件Mimics8.11，由软件生成颅颌面骨STL格式的三维图像文件，应用另一个图像处理软件Geomagic4.0读取该文件，并应用镜像工具以中线为轴线生成健侧半的镜像，最终得到双侧对称的颅颌面模型，将该图像信息输入快速成型系统，通过逐层树脂堆积，生成树脂头模。

The geometrical model created by the CAD software can be directly used, and the preprocess is very simple.

它可以直接利用CAD造型软件构造的几何模型，前处理过程十分简单。

For example, quadratic curve and quadric surface are used as primitive element in most modeling/CAD system. The implicit formulae for computing the intrinsic geometric invariant??

随着对参数曲线曲面研究的深入，早在80年代初苏步青教授等就将几何不变量的研究引入并应用到参数曲线、曲面的研究中，取得了重要的成果［1？

This paper introduces the application fields of reverse engineering , discusses the techniques of coordinate data acquisition and the features and the used scopes of all kinds of measure methods, elaborates the principal techniques of surface reconstruction of reverse engineering,analyses the problems of surface reconstruction., addresses a kind of algorithm of the scattered "points cloud" preprocessing and a method of employing CAD modeling software to finish surface modeling,develops a cloud data optimum processing programme.

本文介绍了反求工程的应用领域，讨论了坐标点的测量技术及各种测量方法的特点与适用范围，阐述了反求工程中曲面重建技术，分析了曲面重建中存在的主要问题，提出了离散"点云"的预处理算法及利用CAD造型软件进行曲面造型的方法，并开发了"点云"数据优化处理程序。

Technology and security from the comparison, the use of CAD software graphics rendering process flow chart of the hydrochloric acid.

通过从工艺和安全上的比较，绘制了盐酸的工艺流程图。

Since 1998, the company began using information technology to manage production, to MIS system and CAD product information mapping and plant management.

自1998年起，我公司开始以信息化方式管理生产，以MIS系统和CAD进行产品制图和厂内信息管理。

The application of information share and WWW method in NCCAD is studied to ingeniously present and achieve the DC model of engineering CAD information based on Object-Oriented and drawing hyperlink, which maps the restrict and topology of product information to intra-conjunction and inter-hyperlink of DC Object .

研究信息共享和WWW模式在网络CAD环境中的应用，基于面向对象技术和图形链接技术创造性地提出并实现了工程CAD信息的图元模型，将产品信息模型的约束与拓扑关系映射为图元对象内部关联和外部链接两个层次。

The graduates can get the stability foundation of mechanics, machine theory, intension theory、hydrodynamics principle, and get the ability of CAD technique, computer program, measurement of mechanical parameter, signal process, application of microprocessor, and so on.

使研究生在力学、机构学、强度理论、流体力学理论等方面具有坚实的基础；在CAD技术、计算机编程、机械参量测量、信号处理、微处理器应用等方面有较强的能力。

Mr. Putin said there were signs of genocide against the Ossetian people.

普京说，有迹象表明对南奥塞梯人进行了种族清洗。

What I'm trying to say, Tristan is...

特瑞斯坦。我想说的是。