查询词典 virtual image

Second, based on the screw theory, the'virtual joint'concept was proposed. By means of this concept, the conventional trajectory planning in Cartesian space was converted in the 'virtual joint'space, that is, the complex trajectory planning in Cartesian space was simplified by utilizing the trajectory planning in the'virtual joint'space.

第二、基于旋量理论提出了"虚拟关节"的概念，利用这一概念可以将传统的笛卡尔空间的轨迹规划转化成"虚拟关节"空间的轨迹规划，也就是说，利用简单的关节空间的轨迹规划方法实现了复杂的笛卡尔空间的轨迹规划。

Research the composing rule of virtual path, design a virtual walkthrough system to browse the host machine in virtual environment; put forward the idea to manage the devices in beverage-packaging production line and can let designers understand explicitly the devices condition in production line.

分析了虚拟路径的构成原理，设计虚拟漫游系统来浏览虚拟生产线；提出虚拟设备管理的思想，使设计人员对设备的工作情况一目了然。

It is reported, alliance of industry of ZhongGuanCun virtual reality is to be in Haidian of garden of ZhongGuanCun science and technology to manage committee, ZhongGuanCun field below leadership of association of industry of new and high technology, by virtual reality (the cool one's heels when bird of allusion, crystal stone, red Beijing, trends is being inspected in VR) navigate enterprise is initiated hold water, aim to condense industry industry catenary through alliance each domain delegate, build virtual reality industry to promote an orgnaization, build development of butt joint of technology of industry learning communication, capital, market application, talent to wait for platform.

据悉，中关村虚拟现实产业联盟是在中关村科技园海淀园治理委员会、中关村高新技术企业协会领导下，由虚拟现实领航企业中视典、水晶石、红京鸟、动态时空等发起成立，旨在通过联盟凝聚行业产业链各领域代表，建立虚拟现实产业促进机构，搭建行业学术交流、资金技术对接、市场应用、人才开发等平台。

In this thesis, the virtual boundary integral equation is based on double layer potential with the virtual density to be determined on virtual boundary. Since this integral equation related to double layer potential only involves the computation of the normal derivative and second normal derivative of fundamental solution, the exponential integral function is not involved in it, so numerical computation for the exponential integral function is avoid.

本文则基于双层位势，引入虚拟矩密度函数来建立虚边界积分方程，并首先对时间变量进行解析积分，在虚、实边界上采用常单元和等额配点离散，该方程只涉及含基本解的法向导数及其二阶法向导数项的计算，对时间变量进行解析积分后，不会出现对指数积分函数的空间变量的积分计算。

Make that folder a Virtual Drive, then install the Virtual CD from the Virtual Drive letter.

作出这样的文件夹虚拟驱动器，然后安装虚拟CD从虚拟驱动器的信。

DVE (Distributed Virtual Environment) is a kind of virtual reality system that simultaneously runs on computers connected by network. It allows distributed users to interact real-time with each other sharing a virtual world. DVE has effulgent application future in numerous domains such as military affairs, cooperative work, network games, etc.

分布式虚拟环境(Distributed Virtual Environment，DVE)是在一组以网络互联的计算机上同时运行的VR系统，使分布在不同地理位置的用户可以在一个具有高度真实感的虚拟世界里实时交互。

Based on the concepts of complex product, standard operation, virtual operation, no-wait and the expansion processing tree defined in this paper, the standard operations are processed by allied critical path method and best fit scheduling method, and the virtual operations are processed respectively on corresponding machine with movement and exchange algorithm in order to translate scheduling problem with no-wait operations into the general scheduling problem with virtual operations.

该方法在提出复杂产品、标准工序、虚拟工序、零等待和扩展加工工艺树的概念基础上，对扩展加工工艺树中的标准工序采用拟关键路径法和最佳适应调度的车间调度算法进行调度，对虚拟工序采用移动交换算法在相应设备上分离调度，将存在零等待约束的调度问题转化为存在虚拟工序的无零等待约束的调度问题。

By analyzing several currently-used visual displaying schemes for cranes simulation training, a display concept based on enhanced virtuality is proposed and some key issues in it are discussed. Manipulation based human-computer interaction technology is studied and two typical virtual controller are realized by associating the time or the location parameter of modeling with its movement parameters. A implement method of physical controller is presented based on virtual keyboard mapping technology and a compact and flexible control box prototype is obtained. Using it, users can operate the virtual crane conveniently.

分析了目前起重机模拟培训常用的几种视景显示方案，提出了一种基于增强现实的显示概念，并对其中若干问题的实现方法进行了探讨；研究了基于操纵的人机交互技术，通过时间或造型位置与起重机运动参数之间建立的联系，实现了两种典型的虚拟控制器；提出了一种基于虚拟键盘映射技术的物理控制器解决方案，设计了一个小巧、灵活的控制盒原型，可以方便地操作虚拟起重机并实现有关运动。

The virtual oceanarium and the Imperial Palace based on web are representative, namely, only virtual reality as tourism attractions product and another integrating virtual reality technology and internet technology.

文章最后选取虚拟水族馆和基于网络的虚拟故宫作为研究案例，代表纯粹将虚拟现实系统作为产品的新型景点及将虚拟现实技术与互联网技术结合起来的新型景点这两种类型，以便对本论题有个更深的理解。

Virtual oscillograph is one kind of virtual instrument, This text has recommended the whole course of the developing of the virtual instrument.

虚拟示波器是虚拟仪器的一种，本文介绍了开发虚拟仪器的全过程。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。