共查询到20条相似文献，搜索用时 437 毫秒
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三维设计软件UG在高等学校理工科的课程设计和毕业设计中被广泛使用,而由软件直接生成的工程图符合的是欧洲标准,为了提高三维设计中UG工程图的制作效率和作图准确性,在UG环境下生成符合中国制图标准的二维工程图,结合GB和实际教学经验,通过实例介绍使用UG软件快速生成工程图的过程,同时阐述建立种子文件,创建及调用图框、标题栏和UG图纸打印的方法和步骤。 相似文献
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Solidworks设计的三维机件模型和二维工程图双向并联,即零件设计后可直接由三维模型生成二维工程图,是工程类技术人员必须掌握的工程技术软件。为此分析了Solidworks工程图与国标不符的差异及其解决方法。 相似文献
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AutoCAD除了优越的平面绘图功能,还具有与其他诸如UG等三维建模软件相似的三维造型功能。本文通过在AutoCAD中对三维实体快速生成二维视图的深入研究,给出了具体操作方法和相关技巧。实践证明,将复杂的三维实体设计与工程制图工作统一起来的AutoCAD高级应用,对减轻绘制工程技术文件的工作量,扩展Au-toCAD使用范围有着积极的工程实际意义。 相似文献
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邹金兰 《广东技术师范学院学报》2007,(10):21-24
本文探讨了Pro/E和AutoCAD软件相结合,由三维模型生成二维工程图的方法.在Pro/E中出二维工程图,由于其全尺寸相关的特点,避免了模型修改后工程图的二次修改,因而具有较高的设计效率;AutoCAD是工程设计人员熟悉及普遍使用的软件,具有强大的二维绘图及编辑功能,将Pro/E中的二维数据转入AutoCAD中进行标注和出图,也是一种切实可行的方法. 相似文献
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基于3D CAD技术的工程制图教学改革探讨 总被引：1，自引：0，他引：1
作为工程设计和产品开发工具的三维CAD应用必将普及.3D CAD/CAM技术的发展对工程制图教学提出了严峻的挑战,工程制图教学应将传统工程制图与二维CAD、三维CAD分块进行教学,并建议组织开设课程设计,以提高用计算机建立三维产品模型和生成二维工程图的能力. 相似文献
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采用UGNX7．0软件的CAD功能对烟草移栽机链箱进行实体三维建模设计,通过UGNX7．0提供的机械制图功能,自动生成二维工程图,并转换为通用AutoCAD格式,运用AutoCAD软件进行标注并生成标准CAD图纸,按图纸要求进行加工制造,在制造的过程中采用UGNX7．0提供的CAM功能进行加工仿真,生成数控代码,最终完成整个设计及制造过程,为类似产品的设计及制造提供借鉴． 相似文献
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韩希国 《辽宁科技学院学报》2021,23(3):25-27
基于Auto LISP、Visual LISP、Dialog Control Language等程序语言,并结合AutoCAD中的flatshot命令,开发将三维实体快速生成二维视图的AutoCAD插件,为创建工程图提供了极大便利.文章重点论述了程序设计的主要方法和步骤. 相似文献
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通过介绍利用Inventor三维建模软件的建模、装配、工程图、表达视图等主要功能模块,文章提出了采用＂二维———三维———二维＂的教学过程,改进了《工程制图与CAD》教学方法 ,提高了教学质量。 相似文献
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罗艳萍 《读与写:教育教学刊》2008,5(6)
The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity. 相似文献
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邱崇丙 《唐山师范学院学报》2014,(1):21-23
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。 相似文献
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Richard Denner 《海外英语》2007,(4):14-15
Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose. 相似文献
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Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F. 相似文献
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《海外英语》2007,(5):10-11
Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help? 相似文献
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陈美曦 《山东教育学院学报》2008,23(2):103-107
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language. 相似文献
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Rachel Zupek 《海外英语》2007,(11):40-41
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了 相似文献
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YANGShiguo 《重庆大学学报(英文版)》2004,3(1):86-88
The problem on the geometrc inequalities involving an n-dimensional simplex and its inscribed simplex is studied. Aninequality is established, which reveals that the difference between the squared circumradius of the n-dimensional simplex andthe squared distance between its circumcenter and barycenter times the squared circumradius of its inscribed simplex is not lessthan the 2(n-1)th power of n times its squared inradius, and is equal to when the simplex is regular and its inscribed siplex is atangent point one. Deduction from this inequality reaches a generalization of n-dimensional Euler inequality indicating that thecircumradius of the simplex is not less than the n-fold inradius. Another inequality is derived to present the relationship betweenthe circumradius of the n-dimensional simplex and the circumradius and inradius of its pedal simplex. 相似文献