虚拟

After analyzing the basic information of the ecological engineering construction, the spatial and temporal scale, and monitoring index, the 1m IKONOS image and 2.5m SPOT5 image were introdueced as data sources, the methodology of RPC modeling and GCP optimitiaztion as modification to the interpretation, the AHP used in determining combination of multi-light specrum and the whole band wave, the virtue reality technique monitoring the classification and recognation, variable cluster allocation coeffiecents and its adaptation in spatial and imaged attributs in the research on water and siol conservation subtracting the least pathches of the area. The final stage is to subtract the information via human and computer interactive to interpret and monitor the classification in the study assisted with GPS, field identification and construction supervision.

在对研究样区水土保持生态建设情况和监测尺度及监测指标分析的基础上，选择1m分辨率的IKONOS影像和2.5m分辨率的SPOT5影像为监测遥感数据源；采用"RPC模型+GCP优化"方法进行高分辨率遥感影像正射纠正；用主成分分析法进行遥感影像全色波段与多光谱图像融合；用虚拟现实技术进行高分辨率遥感影像监督分类模板定义研究，用不同大不的聚类处理参数并在研究水土保持生态建设措施的空间特征和影像特征的基础上，确定提取水土保持生态建设信息的最小图斑参数值；最后用全数字人机交互解译和监督分类提取研究样区水土保持生态建设信息，并结合GPS现场验证和工程监理成果对监测结果进行分析评价。

In visual design system of assembled molds,When the management of the mold drawing database stipulated by feature information of mold or punching part is described,the confused phenomenon of the cognominal files,such as,the overlay or the losing in the time of saving,the indistinguishability in the time of searching or deleting,will be produced easily.

在组合冲模虚拟设计系统中，以模具及冲压件的特征信息描述所制订的模具图库的管理规则，易产生同名文件存储时的覆盖、丢失现象，以及检索、删除时的无法区分等混乱局面。

Based on the CAD technology of 3D feature modeling and virtual assembly etc,3D design and digital prototype of coin wrapping machine were carried out with Pro/E.According to dynamic simulation and interference investigate,the feasibility of design was tested.

在开发过程中采用基于3D特征造型和虚拟装配等CAD技术，应用Pro/E软件实现了该硬币包装机的三维设计和数字化样机的建立；通过动态仿真和干涉分析，验证了设计方案的可行性。

Coin wrapping machine ; virtual assembly ; interference ; dynamic simulation

硬币包装机；基于虚拟装配的设计；干涉检查；装配约束和顺序；动态仿真

In chapter 3, the collaborative design process of virtual prototype is discussed.

第三章对虚拟样机的协同设计过程模型进行探讨。

This model takes the initial values of elements of exterior orientation as the virtual observations and collinearity equation as conditions.

该模型把外方位元素的初值看作虚拟观测值，以共线方程为条件，通过少量的GCP点（少于3个）建立条件方程式，平差解算出外方位元素的改正数，从而获得外方位元素的最或然值，配合DEM数据实现影像的精确纠正。

New options enable users to modify the luminance, contrast, and color index of a rendered image during post-processing.

这使得用户能在不同场景上快速工作和在一个客观环境模拟正确的虚拟场面。

This method overcome the problems of many supposition conditions in theory and difficulty in searching critical slip surface in 3D limiting equilibrium analysis; It uses the 3D FEM\'s stress field directly, differs from the practical value of 3D FEM strength reduction method used hypothesized load, and differs from the characteristic of the FEM with limiting equilibrium theory still to need to divide the columniation, and suppose the critical slip surface in advance.

该方法克服了三维极限平衡分析方法在理论上引入较多假设条件，且搜索临界滑裂面困难的问题；它直接采用三维有限元应力场，不同于三维有限元强度折减法基于虚拟荷载上得出的实用价值；同时异于沿用极限平衡理论的有限元法仍需要进行条柱划分，并事先假设滑裂面形状及位置的缺点。

Notice how the command prompt changes to show you that you are in a virtual Python environment.

请注意命令提示符的变化，提示你是在一个虚拟的Python环境。

In addition, long-range control user is OK still filch " fryer " the fictitious belongings in computer and commercial secret.

此外，远程控制用户还可以窃取"肉鸡"电脑里的虚拟财产以及商业机密。

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