计算机系统

In this paper, a conception of computer measurement system based on virtual instrument idea is presented. The system's flexibility, expandability, interconnection and wide hardware compatibility are also emphasized.

文中提出了基于虚拟仪器的计算机测试系统的技术概念，强调系统功能的用户定义，系统的柔性、可扩充性、可互连性和对硬件设备的广泛兼容性。

The stress was the study of the new methods of calculation the harmonic voltage and the harmonic current, and a new concept of filter ratio to evaluate the actual effect of single harmonic filter was raised considering the background harmonics. As well, the calculation mode of the single harmonic filter was also given based on the concept of filter ratio; it can offer effect data to evaluate the actual filter ratio of the single harmonic filter. At the same time, a method of designing the single harmonic filter was given, too, considering the background harmonics of the power system. In this paper, both the computer analysis and the proven had been done. And the result was shown to be that the voltage aberration and the harmonic current were decreased, and that the actual filter ratio of single harmonic filter was raised. The reason that we must consider the background harmonics when designing a single harmonic filter was also expatiated in this paper.

重点研究了考虑电网背景谐波下谐波电压、电流的计算方法，提出了用滤波率来评价单调谐滤波器安装容量利用率的概念，基于滤波率，分别给出了不考虑、考虑电网背景谐波时，单调谐滤波器的计算模型，为定量分析和评价单调谐滤波器的实际补偿效果提供了依据：并以此提出了考虑电网背景谐波的单调谐滤波器计算机辅助优化设计方法，并经计算机仿真分析、论证，减少了负载母线谐波电压畸变率和注入系统的谐波电流，有效地提高了单调谐滤波器的滤波效果，阐述了单调谐滤波器的设计过程中要考虑电网背景谐波的理论和实际意义。

The Herbalist Doctor's Expert System is an all-around advanced management method, which includes the science of management, information, system and computer techniques.

中医专家系统是一种融合中医学、管理科学、信息科学、系统科学、电子计算机技术为一体的综合性先进管理系统。

Through the research of the application of hoister stroke control and computer control, the paper introduces the design and the application of control system of auxiliary shaft hoister.

本文以孔庄矿副井提升机改造为工业背景，通过对提升机行程控制和计算机控制技术在矿井提升机中的应用的研究，阐述了副井提升机计算机控制系统的设计与应用情况。

With the rapid development of computer technology, computer information management system has become a hot topic.

详细说明：随着计算机技术的迅速发展，计算机信息管理系统已成为热门话题。

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。

Under the condition of making the best of informationization resource inexistence, it made detail design to computer network, system platform of software and hardware, database management system, operation management function module and security safeguard system.

在充分利用现有信息化资源的约束条件下，对计算机网络及系统的软硬件平台、数据库管理系统、业务管理功能模块和安全保障系统作了详细设计。

The method of slide-mode variable structure control is such a strategy that is characterized of low mathematical model precision, insensitiveness to system parameter variation and external disturbances, omission of parameter identifications, fast dynamic response and easy implementation. These advantages make it suitable to high performance vector controlled AC motor drives.

滑模变结构控制是一种强鲁棒性的控制方法，对系统数学模型精度要求不高，具有快速响应、对参数及外部扰动变化不敏感、无需系统在线辨识，实现简单而且很适合计算机实现等优点，因此，很适合高性能的交流电机矢量控制系统。

Based on the feature of database,indexing way and technical method of a computer document reference system,the author simultaneously advances that between the expanding information and the demand of information users a library of a college or university should become a navigator to knowledge.

本文论述了网络环境下高校图书馆计算机文献检索之必然发展趋势，同时根据计算机文献检索系统的数据库、检索方式、技术方法等方面的特点，提出了在不断膨胀的信息资料和信息用户的需求之间，高校图书馆应该成为知识导航员。

Company is mainly engaged in large-scale computer and network system integration, intelligent building system integration, weak systems integration projects.

公司目前主要从事大型计算机及网络系统集成、智能建筑系统集成、弱电系统集成等工程。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。