查询词典 system

Analyzed from angle of system, the system of lake water body is the system full of more uncertain factors complicated system.

从系统的角度来分析，湖泊水体环境系统是一个充满不确定性因素的、变化复杂的大系统。

The most important cost-control system is fixed management system, the budget management system, the cost of the system of pre-trial report.

成本控制中最重要的制度是定额管理制度、预算管理制度、费用审报制度等。

ABSTRACT Motived by the status of theoretical studies and the requirements of engineering applications in the fuzzy control system, the characters of fuzzy logic systems are analyzed, the mathematic model of a class of fuzzy logic system is built, especially the ways how to use the model to identify the nonlinear dynamic system and design the adaptive control system are researched deeply in this paper.

本论文根据模糊控制理论研究的发展现状、存在的主要问题以及工程实际应用的基本要求，分析了模糊逻辑系统的特性，建立起一类模糊逻辑系统的数学模型，并对其用于非线性动态系统辨识与自适应控制系统设计方法等方面进行了深入的研究，为解决某些传统方法难以解决的工程实际问题提供了新的思路。

Application of μC/OS-II in the remote measure system of rainfall, the μC/OS-II real-time embedded operating system and its working principle were briefly introduced in this paper, and then elaborately introduces the process of μC/OS-II real-time embedded operating system naturalizing into 80C196KC MCU, as well as the realization of measure, communication, control and the determination of task priority in the remote measure system of rainfall.

在简要介绍μC/OS-II实时嵌入式操作系统及其工作原理的基础上，详细介绍μC/OS-II实时嵌入式操作系统在80C196KC单片机上的移植以及水雨情遥测系统中测量、通讯和控制任务的实现、任务优先级的确定，并针对水雨情遥测系统的要求以及80C196KC单片机的特点，确定各任务之间的通讯方式。

This paper is based upon XiShan Colliery Parent Company .The data of DongQu Mine pit ventilation resistance mensuration is combined. And system theory, graph theory, ventilation network technology and computer technology are utilized. According to the reality of coalmine, we think that graph and database is incorporate in mine ventilation system. So based on this, ventilation system standard graph is founded, the tool of ventilation graph to draw is made, the ventilation network calculation is realized, the outcome of the ventilation network calculation is seen on the screen, and opaquing and inquiring of the road parameters and so on. In addition to mine ventilation drawing-database visual management system is developed.

本文基于西山煤矿总公司东曲矿〖东曲矿矿井通风网络计算机管理系统〗科研项目，结合东曲矿矿井通风阻力测定，运用系统理论、图论、通风网络技术及计算机技术，针对煤矿实际，将矿井通风系统中图形和数据库贯穿为一体，创建了通风系统标准图库并编制了通风图形绘制工具，实现了风网解算和解算结果图形显示及巷道参数的修改、查询等功能，开发了矿井通风图形数据可视化管理系统。

Firstly, this thesis makes an introduces on the developement of PMSM servo system based on DSP. According to the control theory of AC PMSM servo system, this paper analyzes the coordinate transformation, the rotor magnetic field orientation and the current control strategy of AC servo system. The control strategy is i_d=0. The system is orientates towards rotor magnetic field. Then the mathmatic models of PMSM in d-q coordinate are set up.

本文首先对基于DSP的永磁同步电机伺服系统的发展概况进行了介绍；根据永磁同步交流伺服系统的基本控制理论，分析了交流伺服系统坐标变换原理、常用的磁场定向方式及电流控制策略，并给出i_d=0电流控制策略及永磁同步电机按转子磁场定向的控制方式，从而建立永磁同步电机d-q坐标系下的数学模型。

Through application of A-1 and A-2 in extruding pelleting system, also found that A-2 decreased power of pelleting system, current of gear pump and voltage more availability than A-1 in conclusion application of A-2 in peileting system could improve output of extruding pelleting system.

通过对A-1、A-2在挤压造粒工艺中的工业应用同样发现：A-2对降低混炼机功率，齿轮泵电流和压力都有帮助，能够达到提高挤压造粒系统负荷的目的。

This system melts Global Positing System, Geographic Information System, Global System for Mobiles communications, the technique of computer data processing and the technique of modern data communication in the integral whole. It can realize all-weather fixed position of satellites, electronic map to show and vehicle real-time monitoring and so on.

该系统融合了全球卫星定位系统、地理信息系统、全球移动通信系统以及计算机编程技术和现代数据通信技术于一体，可实现电子地图显示和车辆实时位置监控等功能。

A fuzzy variable structure controller inherits the robust characteristics of sliding mode control and interpolation property of fuzzy logic control. The robustness property of variable structure system makes the control system insensitive for different burthen variety and different outside disturbance. Fuzzy control predigests the device of control system and alleviates the chattering which variable structure system causes .

模糊变结构控制器继承了滑模控制的鲁棒性能和模糊逻辑的内插性能，变结构控制的鲁棒性使系统对不同的负荷变化、不同的外界干扰不敏感，模糊控制简化控制器的设计，减弱由变结构引起的抖振现象，实现更良好的控制效果。

Chapter 10 prefigures the future of our accounting system as the long-standing in the form of accounting system, the international harmonizes of accountmg system and the characteristics of Chinese accounting system

第十章探讨了我国会计制度的未来，论证了会计制度形式的长期性、会计制度国际协调的长期性以及会计制度中国特色的长期性。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。