查询词典 flow control

Temperature is a very popular parameter of pyrology in flow industry, so temperature control is an emphases of process control.

温度是流程工业中极为常见的热工参数，对其的控制也是过程控制的一个重点。

The manipulator uses PLC to control.The paper institutes two controls chemes of PLC acordine to the work flow of the manipulator.The paper draws out the work time sequence chart and the trapezia chart.What's more,the paper work out the control program of the PLC.

利用可编程序控制器对机械手进行控制，选取了合适的PLC型号，根据机械手的工作流程制定了可编程序控制器的控制方案，画出了机械手的工作时序图和梯形图，并编制了可编程序控制器的控制程序。

Based on an analvsis of the aerodvnamicnoise source and its theoretical moddf of thelow pressure axial flow fan,and with the theory of the boundary layer and the aerodynamictheory of peripheral control inside the turbomachine blade,a new peripheral control methodwith additional guide vanes fitted on the blade surface is preposed.

在分析轴流式风机噪声源及其理论模型的基础上，应用叶轮机械叶片内部绕流控制的气动理论与边界层理论，提出了设置在工作轮叶尖与沿叶高上、中、下后缘处的附加导叶装置，以控制叶尖间隙噪声与沿叶高出口尾迹涡流噪声。

FACTS can control the parameter and structure of the AC power system flexibly and fleetly, then the system stability and reliably can be improved greatly, Unified Power Flow Controller colligates the control function of many FACTS element, and has been considered as the most creative and powerful element in FACTS.

FACTS能实现对交流输电系统参数以至网络结构的灵活快速控制，从而大幅度提高系统稳定性、可靠性，其中，UPFC综合了许多FACTS器件的灵活控制手段，被认为是最有创造性的，是功能强大的FACTS元件。

This thesis analyzes the stability of the proposed algorithm and educes the scope of main parameters in theory, and then the control quality can be guaranteed in theory, which provides a new approach for TCP flow rate control.

本文从理论上分析了该算法的稳定性，导出了算法中主要参数的取值范围，从而从理论上保证了控制的品质，并为TCP的流量控制提供了一种新思路。

Through the SPCE061A programming, this design requests us use the single chip microcomputer, PLC or other components to control the LED digital tube and the double color LED lamp on the traffic light control panel, enable the system to have the following functions: The four intersections of the crossroad all have double color LED (gives out red light and green light, superimposes for yellow light) to demonstrate the condition of every channel on the intersections; Each intersection has two digital tubes to demonstrate current traffic light countdown; use the button or other way to simulate the counting of the traffic flow volume.

设计要求通过SPCE061A的编程，使用单片机、PLC或其他器件来控制交通灯控制板上的LED数码管以及双色LED灯，使系统具有以下功能：十字路口的四个路口都有双色 LED （发红、绿光，叠加为黄色光）显示各路口的各条通道状态；每个路口有两位数码管显示当前红绿灯的倒计时；可利用按键或其它的方式模拟对车流量的计数；有四种工作状态：正常工作状态、紧急工作状态、设置状态和查询状态；红绿灯变换时有语音提示；查询时，可语音播报当前路况。

So, systematically describing dynamic flow of canal control system needs the modern control theory.

因此，要从理论上系统地描述渠道系统的动态变化只能借助现代控制理论。

Simulation shows that the control system of canal operation designed with optimal control theory is steadiness, and that the state of canal water flow can be regulated to the target state from any initial state.

表明用最优控制理论设计的渠道运行控制系统控制器稳定性好，能够将渠道运行系统的任意初始状态，调整到目标状态。

In this paper a new contingency screening and ranking method is formed by combiningiterative filtering screening technology with continuation power flow analysis. Researchingpreventive control policy in reactive power compensation and load control when themargin of stability is serious, and reciprocal math model is given;through the exempleof IEEE39 typical system , the availability of the discussed methods in this dissertationwas approved. Aimed at the real grid, the contingency screening analysis and preventivecontrol policy based on Beijing power grid is discussed;the static voltage stabilityanalysis software based on figure draw of Beijing grid is realized, and the software hasthe junction to BPA .

论文提出了将迭代过滤筛选技术和连续潮流法相结合的事故筛选分析方法；从无功补偿控制和负荷控制两方面研究了系统裕度紧张时的预防控制策略，给出了相应的数学模型；采用IEEE39节点的标准系统算例，验证了本文提出的静态电压稳定事故筛选分析方法的可行性；针对实际电网讨论了基于北京电网的事故筛选分析和预防控制策略；通过与BPA接口实现了基于北京电网图形平台的静态电压稳定分析软件。

Over the past few years, the company and make unremitting efforts to form an automatic sprinkler fire extinguishing system-oriented products, have developed a fixed artillery fire extinguishing systems, foam extinguishing systems, gas fire extinguishing system, such as series of fire protection products, the current main Products are: sprinkler nozzle series, wet alarm series, deluge valve series, the flow indicator series, water spray, water curtain fire sprinkler control valve series series, in particular the PS20 - PS80 fire water cannons, PSKD30 - PSKD60 electric artillery fire control, PHY Series storage pressure of air bubble mixing device, such as the proportion of products in the domestic market by the user's consistent high praise, has great competitive advantage.

几年来，公司经过不懈的努力，形成了以自动喷淋灭火系统为主导产品，相继开发研制了固定消防炮灭火系统，泡沫灭火系统，气体灭火系统等系列消防产品，目前主要的产品有：洒水喷头系列，湿式报警系列，雨淋阀系列，水流指示器系列，水雾，水幕喷头系列消防控制阀系列，特别是PS20--PS80消防水炮，PSKD30--PSKD60电控消防炮，PHY系列贮压力使空气泡沫比例混合装置等产品在国内市场受到用户的一致好评，具有很大的竞争优势。

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。