查询词典 virtual

Based on the variational principle of virtual voltage and virtual displacement derived in this thesis and the classical theory of linear laminated plates, and by using the constitutive equations of elastic piezoelectric materials, and the DKQ quadrilateral plate bending element, the finite element modeling for the fabric reinforced laminated plates with nonlinear voltage-electric strain relationship of piezoelectric actuators has been established for the first time in this thesis. And the expressions for the electric loadings with obvious mechanical meaning and convenient for computation are established, which can be used to the deformation analysis of laminated plates with piezoelectric actuators under specified voltages.

以本文直接导出的压电结构的虚电势—虚位移变分原理为基础，依据经典线性层合板理论和压电弹性体的本构方程，采用基于离散法线假设的DKQ四结点任意四边形薄板弯曲单元，首次建立了考虑非线性电压—电应变关系的含压电致动器的纤维增强型层合板的有限元分析模型，并推导建立了力学意义明确、便于计算的电荷载表达式，可用于指定电压条件下纤维增强型叠层合成板的变形分析。

3 Computation of virtual work principle and structural displacement : understand the content about the virtual work principle of deformable body and its application; skillfully master the calculation method of statically determinate structure displacement by loads; master the calculation method statically determinate structure displacement by temperature variation and support movement; know Reciprocal theorems .

虚功原理和结构位移计算：理解变形体虚功原理的内容及其应用，熟练掌握在荷载作用下静定结构位移的计算方法，掌握静定结构在温度变化，支座移动影响下位移的计算方法，了解互等定理。

Keywords: virtual assembly;hybrid tolerance model;model mapping;product modeling;virtual reality

通过分析虚拟装配对产品公差模型的要求，提出了虚拟环境下产品公差混合模型。

Taking bearing virtual prototype as an object, model transformation and product demonstration of virtual product were studied in this paper.

本文以某轴承虚拟样机为例，从模型转换，以及产品演示的角度进行了研究。

This paper adopts a method proposed recently, which uses projective geometry transform and 3D vision correspondence from multiple cameras to interpolate virtual images based on virtual viewpoint.

本文采用了一种较新的方法，即通过基于射影几何学变换和立体视觉对应的方法插入虚拟视角的虚拟图像。

At last, a virtual proving ground is built based on OpenGL, with this work the virtual experiment may be carried out next.

最后，建立了基于OpenGL的虚拟试验场，可以在此基础上进一步进行汽车虚拟试验。

Virtual environment is a condense space from depth direction Through experiment, it is proved that virtual environment could not display original depth of the real world, and it is a depth-condensed space.

通过试验，从调节和集合的角度证明了虚拟环境不可能还原现实世界的深度信息，虚拟环境是一个深度方向被压缩了的空间。

And feel are virtual; our voice is real, our memory is virtual

的唯物主义和唯心主义，胜利了的二元论。

With the help of the real entity calibration algorithm introduced in this dissertation, the system will overlap the calibrated virtual robot on the real video images and use the virtual robot to respond users' operation in real time.

最后在理论研究的指导下，通过两种精度的装配实验，总结分析了不同的作业任务对机器人遥操作系统的影响，验证了系统的可行性和正确性。

Thanks to the conditions, virtualization comes true in investigation in different degrees: creating a virtual scene to reinvestigate and to reconstruct; launching net virtual investigations, by using information platform; setting up IDSS.

同样，虚拟化也应当在犯罪侦查中得到应用，由于现实条件已经具备，在侦查中完全可以不同程度地实现虚拟化：可以建立虚拟现场，进行现场"复勘"并进行虚拟重建；利用各种信息平台，展开网上虚拟侦查；建立侦查智能决策支持系统，实现决策虚拟化。

After explaining total design of automated test system for microcircuit , the thesis introduces GPIB standard .

文章在说明了微电路模块自动测试系统的总体设计后，对GPIB标准进行了介绍。

He interceded in my behalf.

他替我说情。