数字计算机

The reasons above gave answer of random select of preview decision point.

因而，在数字仿真过程中出现了计算机随机取点的现象。

Taking YFD hydraulic profiling tool carrier for example,computer dynamics simulation on transition process of hydraulic servo system has been completed with power bond graph and space-state method in this paper.

以YFD型液压仿形刀架为例，利用键合图和状态空间法对液压伺服系统的过渡过程进行了计算机数字仿真，为伺服系统动态过程的理论分析研究及系统设计阶段的动态预测提供了依据。

Then it systemically does research on some critical technical questions. The paper is composed mainly of the following aspects:Bringing forword one design of three-tie virtual reality system;To execute texture may take much time,so I bring forword several methods of how to make out texture:one is photocopy correct in ArcGIS;another is compiling programme with Matlab;using tools of Autocad and 3D MAX to reproduct the main part of Kunming in computer.

研究的主要内容包括：初步设计了一个数字城区的三维虚拟漫游系统；对于比较费时的纹理制作，实现了二种半自动化的方法：一是基于ArcGIS的影像纠正；二是用程序来处理，通过编写MATLAB程序实现人机交互式的纠正；应用AutoCAD和3D MAX在计算机中实现了对昆明主城盘龙区的三维重建。

Computer Integrated Telephone is Digital Equipment Company's program, announced in October 1987, that provides a framework for functionally integrating voice and data in an applications environment so that the telephone and terminal on the desktop can be synchronized, the call arriving as the terminal's screen on the caller arrives.

计算机集成技术是数字设备公司于1987年10月推出的一种程序，为应用程序环境下功能性集成语音和数据提供了框架，这样桌面上的电话和终端就可以获得同步，当呼叫进入时，终端屏幕上将显示呼叫。

To achieve high-performance PMSM position servo system, advanced control scheme, which is static precision, transient responses and self-adaptation and anti-disturbances, is needed in practice. Based on the analysis on the features and control principles of PMSM, this thesis established its math model using id=0 vector control method. Three close loops control system, which includes current loop, velocity loop and position loop, was built up. For position loop, the main feedback loop, we chose a new adapted-fuzzy CMAC intelligent controller, which includes self-learn ability of neural net and quick response merit of fuzzy controller. Finally, the author simulates PMSM position servo system by the simulink of matlab, an advanced computer simulation tool.

本文对PMSM的控制机理和特性作了较为深入的分析；建立了PMSM的数学模型，并采用了id=0的矢量控制策略；对控制系统组成及控制方式作了分析和比较，在此基础上建立了电流环、速度环和位置环的三闭环控制系统，对作为反馈主回路的位置环采用了模糊CMAC神经网络控制方法，该方法兼具模糊控制器的快速性和神经网络的自学习能力；构建了针对PMSM位置伺服系统的模糊CMAC控制器结构及其相应的算法；利用先进的计算机仿真工具（Matlab下的Simulink）对所提出的控制策略进行了数字仿真和分析；仿真和实验结果表明本文所提出的控制策略对PMSM位置伺服系统进行控制具有良好的鲁棒性能和快速性。

Under certain ratio of signal-to-noise and through the computer simulations and calculations, the performances in Mbius digital base band communication system of five often used modem function set, those are the even and odd symmetrical triangle wave, even and odd symmetrical square wave and saw-tooth wave and their inverse transforms, are simulated 10000 times, and the fluctuation ranges of the error rate P(subscript b are observed.

在一定信噪比的前提下，通过计算机仿真和编程计算，对Mbius数字基带通信系统中偶对称三角波、奇对称三角波、偶对称方波、奇对称方波和锯齿波这5种常用的调制解调函数族及其逆变换进行仿真1万次，观察错误概率P

A digital control emergency braking system of hoist is carried out based on industrial controlling computer,it has successfully realized constant deceleration retardation,a new approach has been developed for improving the safety and reliability of hoist emergency braking.

给出一种利用工控计算机实现的全数字控制提升机紧急制动系统，系统已成功地实现了提升机紧急制动时的恒减速，为有效地提高提升机紧急制动的安全性和可靠性开辟了新的途径。

A digital control emergency braking system of hoist is carried out based on industrial controlling computer,it has successfully realized constant deceleration retardation,a new approach has been developed for improving the safety and reliability of hoist emergency braking .

给出一种利用工控计算机实现的全数字控制提升机紧急制动系统，系统已成功地实现了提升机紧急制动时的恒减速，为有效地提高提升机紧急制动的安全性和可靠性开辟了新的途

For example, the fourth column of numbers shows that the expected risk premium on computer stocks is percent.

例如，第四栏的数字显示了计算机股票的期望风险溢价是%。

The proposed method can register two point sets with geometrical distortion and different dimensions.

引 言数字图象的配准是计算机视觉及图象分析中的一个基本问题[1] 。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。