第三章讨论虚拟建模技术，分析和比较了四种虚拟建模技术优缺点。
Chapter 3 discuss virtual modeling technique, analyze and compare the four virtual modeling technique.
最后，论述了装配体虚拟建模的方法，完成了卧式柱塞泵虚拟装配系统的设计与实现工作。
At the end of this thesis, treatise the method to modeling the assemblies, complete the virtual assembly system of horizontal piston pump, give the operation mode about it.
虚拟建模技术是克服遥操作时延问题的有力手段，但是这种方式依赖于虚拟模型建立的精度。
Although this method can solve the time delay problem, it depends on the precision of the virtual model.
其中主要包括草图设计、虚拟建模、VRML编辑等几个阶段，最终完成产品虚拟设计方案。
It includes sketch map design, virtual molding, VRML edit, then makes the last virtual design project.
重点对电动执行器的虚拟建模、虚拟装配、运动仿真、干涉分析和工程图生成及管理等方面进行了探讨和研究。
Emphatically, virtual modeling, virtual assembling, motions simulation, interference detection, the management and creating of engineering drawings etc. are researched and studied.
本文在对虚拟现实、虚拟建模、虚拟漫游等相关技术作了介绍，并设计与实现一个基于PC机的桌面式校园虚拟漫游系统。
In this paper, we briefly introduce some relevant techniques of VR virtual modeling and virtual walkthrough, and we design and implement a virtual campus walkthrough system based on PC.
采用基于特征的参数化建模方法，对动力换档变速器进行了虚拟建模、虚拟装配，然后对动力换档变速器虚拟模型进行干涉分析。
With parameterized modeling method on feature. the power-shifting transmission's virtual model and virtual assembling are established. Then, interference analysis is done.
今年的演习与往年相比，更多地将重心放在虚拟建模上。大部分的美国海军军舰从位于弗吉尼亚和佛罗里达的基地出发参加这次演习。
This year's exercises saw a greater emphasis on virtual modelling than in previous years, with most of the participating us naval vessels doing so from bases in Virginia and Florida.
介绍了UG软件中的虚拟设计、虚拟装配、优化分析技术，并基于虚拟设计的思想，运用UG软件对真空注型机的门铰链进行虚拟建模、装配和优化分析。
And used UG software for the virtual design, assembling and optimal analysis of the vacuum casting machine door gemel, based on virtual design idea.
其研究结果能够为树木、森林的动态过程模拟建模提供足够详细、可靠的数据源，从而实现整个虚拟森林生长的动态变化。
Research result can provide detailed and credible data source so that it can implement the dynamic variation in the virtual forest growth.
系统具有3d结构特征化建模、结构虚拟建造、虚拟漫游、构件虚拟试验、结构分析及数据可视化等功能模块。
Thesystem composed of 3d feature-based modeling of the structure, virtual construction, virtual ramble, virtual test, structure analysis and visualization.
系统具有3d结构特征化建模、结构虚拟建造、虚拟漫游、构件虚拟试验、结构分析及数据可视化等功能模块。
Thesystem composed of 3d feature-based modeling of the structure, virtual construction, virtual ramble, virtual test, structure analysis and visualization.
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