虚拟

The virtual operating and training system for guncotton producing includes theory knowledge, entity model, accident scene, database, virtual operating, operating and testing modules.

硝化棉生产虚拟操作培训系统，包括理论知识和实物模型、事故场景和数据库、虚拟操作及操作考核测试模块等。

Virtual enterprises exist the geographical diversity and heterogeneousness between operation platform and application system. A steady, fast, and effective platform or tunnel is required among information exchange during creation and operation of virtual enterprise.

但是由于虚拟企业合作伙伴大多数存在地理位置分布的差异性、运行平台和应用系统的异构性，以及虚拟企业组建及运行过程中大量、频繁的信息交互需要一个稳定、快速、高效的基础平台和通道作为支撑。

Taking a vehicle mounted howitzer for example, the model establishing, simulation, and performance of virtual prototyping were analyzed.

以某车载火炮的总体方案为例，介绍了虚拟样机的建模、仿真，并分析了虚拟样机的性能。

By anchoring an imaginary spring between each data point and deformable curve or surface, the fairing model is established. Then FEM is used to solve the deformation problem of the model caused by imaginary springs and a bicubic B-spline surface patch is taken as one element. Lastly the B-spline active surface model is applied to surface reconstruction from layer data and the problem resulted from fitting for uneven cross-sectional curves can be solved.

通过在数据点与模型之间连接虚拟弹簧，建立光顺模型，并以双三次B样条曲面片作为单元，运用有限元法对模型在虚拟弹簧作用下的变形问题进行求解，得到光顺后的B样条曲面；并在此基础上，提出了一种新的基于断层数据的表面重建方法，可很好地解决不均匀截面族的曲面生成问题。

Moreover, with the rapid development of computer technologies and virtual reality, WebGIS map publish system has been injected new vitality; in the situation of real 3D GIS development immaturely, the study of two-dimensional electronic maps and virtual scene integrated WebGIS system has some practical significance.

此外，计算机图形学及虚拟现实技术的快速发展，给WebGIS地图发布系统注入了新的活力，在目前真三维GIS系统发展不成熟的情况下，研究二维电子地图与虚拟场景集成的WebGIS应用系统具有一定的实际意义。

These application need only realistic complex Virtual Environment, but require the user can interact with the virtual scene at immersible frame rate.

这些应用不仅要生成高度真实的复杂虚拟环境，而且用户要和虚拟环境进行互动，增强交互性和沉浸感。

Whats more, dynamic show run time and texture mapping of RS image by color composition are provided with strongly impactive visual effect. This kind of real 3D browser and display lives up to what we see is what we want and it has become a bridge between 3D GIS and virtual reality.

这种三维的浏览与显示做到了"所见即所得"，这是虚拟现实的基本条件之一，这一过程也就成为进一步研究三维地理信息系统与虚拟现实之间关系的桥梁。

Using virtual prototype technology to study high temperature rotation scanning target in this paper, it not only obtained a certain achievement, but also laid the foundation for applying virtual field technology in other key parts even and all of the high-current oxygen ion implanter.

本文应用虚拟样机技术来研究高温旋转扫描靶，取得了一定的成果，为今后将虚拟样机技术推广到强流氧离子注入机其它关键部件乃至整机的研究奠定了基础。

The imputed treatment of the industrial pollution only considered the environmental cost under current treatment techniques rather than the treatment cost when the pollutant has been diffused, where the imputed cost would become much larger.

当年虚拟治理的工业污染只考虑了现行治理水平下的环境成本，而污染物实际扩散后的环境治理成本将远远大于计算的虚拟环境成本。

With the compare of research methods such as direct experiment, indirect method and numerical simulation method, and with the applied background of the Virtual Prototype technology, the paper puts forward a new strategy for the design of the testing device for dynamic response of road based on Pro/E、 ADAMS and ANSYS software. On the basis of the theory, this paper analyze the scheme and the important parts, and has proposed that actual modeling parameter, pattern and arrangement scheme, and structured the complete machine scheme of a testing device for testing road dynamic response based on dynamic load of vehicle-road.

本文在系统分析了各种车路系统动载荷研究方法的基础上，针对直接试验方法、间接试验方法和数字仿真方法的发展，并结合"虚拟样机"技术的应用背景，提出了一种基于Pro／E、ADAMS和ANSYS软件的基于车路动载荷的测试路面力学响应的试验装置的虚拟样机的实现策略，并在此基础上，对方案和重要部件进行了分析，提出了实际的建模参数、型式和布局方案，构建了一种基于车路系统动力学的测试路面动态力学响应的试验装置的整机方案。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐