查询词典 CAD

In the CAD system for progressive dies, the method is introduced to automatically generate geometric models of stampings through inputting the product drawings by AutoCAD and picking-up the entity information from DXF files and programming with ObjectARX and C＋＋ language, at the same time, generating algorithm of close contour lines and unidirectional chain-table structure are used to express the models of stampings, the class and direct judgment of contour lines are realized and the entity existing side is judged by analytical geometry, which efficiently solves the problem of automatic input of drawings of stamping and providing information of process planning and mold design.

在级进模CAD系统中，将产品的图形信息以AutoCAD直接绘图形式输入到计算机中，从AutoCAD的图形交换文件中提取信息，采用面向对象的二次开发工具ObjectARX和C＋＋语言编写接口程序，并通过封闭轮廓的生成算法自动生成冲裁零件的几何模型，且用单向链表的形式加以表达，同时对冲裁零件图形的轮廓进行分类与走向判定，采用简单的解析几何方法对实体存在侧进行判定，有效地实现了零件图形的自动输入，为级进模CAD系统的工艺计算和模具工作部分的设计等提供了必要的信息。

In this thesis, CAD formulas are obtained by synthetic asymptote for three structures, from simple to complicate. The top layer is assumed very thin for all three structures.

通过"自展"，可以从简单结构的CAD公式推出较复杂结构的CAD公式，如本文中可以从简单的贴片电容公式出发最终推出较复杂的螺旋电感公式。

In this thesis, CAD formulas are obtained by synthetic asymptote for three structures, First, we obtain the simple CAD formulas of a microstrip line on two-layer substrate with loss

采用"合成渐近"法，本文首先推导出两层有耗介质上的微带线单位长度电容的CAD公式，从而可以计算出微带线特征阻抗和传播常数

Years of CAD technology and systems with the rapid development of CAD / CAM applications to spread rapidly.

三十几年来CAD技术和系统有了飞速的发展，CAD/CAM的应用迅速普及。

The integration of Web and CAD/CAM technique, is the trend of CAD/CAM system.

将Web技术和CAD／CAM技术相结合，是CAD／CAM系统发展的重要方向之一。

With the development of computer network technique and CAD/CAM, it makes a good base for application of CAD technique.

计算机网络技术、CAD／CAM技术的发展，为CAD技术的应用奠定了良好基础。

To solve these problems, virtual reality techniques are brought into CAD community, which yields the socalled VR-CAD system.

为解决这些问题，研究人员将虚拟现实技术引入到CAD系统中，基于虚拟现实的CAD系统应运而生。

Lead the CAD design group in order to create Cockpit Exploded View, BOM, Tolerance Stack Up, Ergonomic Package Data, Gap Control, Geometry, and ensure CAD data and drawing coherence

管理整个CAD设计团队，创造驾驶舱模块爆炸图，物料清单，允许公差，软件包数据，间隙控制，几何设计，并确保CAD数据和图纸的一致性。

This paper is aimed at the insufficiency of the text- processing methods of Auto- CAD. On the base of a general analysis of the data structure of the text- entity in Auto CAD, we absorbed the advanced functions of other wordprocessing system and made this program with Auto LISP language.This program have improved greatly both on the operation and on the efficiency.

针对 Auto CAD对文字实体处理方法的不足，经过对文字实体数据结构全面分析，吸收其它文字处理系统中做法的优点，利用 Auto L ISP语言编写了 Auto CAD文字处理程序，此程序无论从操作的简单性还是工作效率上都大大提高了。

Some specific techniques and approaches need to be explored to push forward AEC oriented CAD research and application.

工程CAD与传统的机械CAD相比有较大的差异，因此有必要研究工程CAD特有的技术和方法。

Plunder melds and run with this jewel!

掠夺melds和运行与此宝石！

My dream is to be a crazy growing tree and extend at the edge between the city and the forest.

此刻，也许正是在通往天国的路上，我体验着这白色的晕旋。