查询词典 process control

This paper has made exposition to the design process of the motor drive electric control circuit and the fluid drive PLC control system in the machine processing control system based on PLC.

继电器控制系统已经无法满足这一需求，迫使人们去寻求一种新的控制系统来取代它。

In addition, under information technology environment, the focus of internal control has turned from control of business process to the control of computer information system.

另外，在信息技术环境下，由于业务环节和交易方式的改变，内部控制的重心从对业务过程的控制将转向对计算机信息系统的控制。

ABSTRACT Intelligent Control is developed for the systems, control environments and control objects with uncertainty, and it is a formularization process with the complexity and fuzziness which usually has not the non-traditional mathematical functions without known algorithms.

智能控制是针对系统及其控制环境和任务的不确定性而提出来的，是含有复杂性、不确定性、模糊性且一般不存在已知算法的非传统数学公式化的过程。

Taken the three dimensional shining metal combination machine tool as an object of study in the paper,the main structure and motion form have been discussed and the work process and control requirement of machine tool have been analyzed,the movement cycle diagram of machine tool and the motion table of hydraulic pressure component have been given.Then the control system design based on PLC has been proposed,the I/O address table has been listed and the hardware and software of the control system has been de...

文章以三面铣组合机床为研究对象，通过对主要结构和运动形式的探究以及对机床的工作过程和控制要求分析，给出了机床动作循环图、液压元件动作表；并采用PLC控制系统的设计方法，列出了I/O地址分配表，进行了软硬件设计，绘制了 PLC的外部接线图和单循环自动工作流程图及其说明；实验运行结果表明，将PLC技术应用于三面铣组合机床具有整体技术及经济效益。

The blackboard process model, blackboard framework and blackboard control architecture are presented, and the basic ingredients, the control mechanism and applicable scope of three typical blackboard control architecture are probed in details. And, a reference implementation of the JDL model based on blackboard is also given.

具体研究了黑板结构及黑板处理机制与黑板结构的控制、黑板结构的控制策略及三种重要的黑板控制机制，深入分析了各级处理的特点及其实现方案，最后给出了融合节点基于黑板结构的一种参考实现。

Hence the propagation delay time of master's control signals don't need to be pre-known in the control process of synchronization, and also these criteria are applicable to chaotic complete synchronization of the master-slave Lur'e systems concerning master's control signals without propagation delay.

我们证明了关于该混沌同步问题达到滞后同步或不能达到滞后同步的四个Lur'e型判据和七个频率域判据，给出了优化选择主系统驱动变量的模型。

Finally was some control policy, these control policy control must be passes through the enterprise entire multiplication strategy entire process, its final goal was guarantees the enterprise multiplication strategy the benign sustainable development.

最后是了一些控制策略，这些控制策略控制应当是贯穿企业整个多元化战略全过程的，其最终的目的是保证企业多元化战略的良性可持续发展。关键词：多元化战略；财务风险；控制

In order to evaluate each performance index of a numerical control machine tool, the comprehensive performance evaluation index system of a numerical control machine tool was established, and the performance index weight coefficient of the numerical control machine tool was determined by using the 1-9 scale law in the analytic hierarchy process.

为了全面评价数控机床的各项性能指标，建立了研究数控机床综合性能的评价指标体系，采用层次分析法中的1～9标度法确定了数控机床各项性能指标的权重系数。

It can sample voltage and current online, control alumina content and regulate polar distance, analysis and report cell noise, predict the anode effect and warning with sound and light, keep watch on and control artificial schoolwork process. At the same time it can connect with monitoring computer to exchange data and receive parameters, which are tuned and optimized by monitoring computer. And this can make the control to the aluminium electrolytic cell more accurate and reliable.

它能在脱机状态下独立完成电压、电流的在线采集，正常槽况下的准连续按需下料控制与常态极距调节、槽噪声解析与报告，阳极效应预报与声光报警，人工作业工序监控等功能，能在联机状态下与监控机交换数据，并接收来自监控机的参数整定与优化，使对电解槽的监控更为精确和可靠。

Taking Master CAM as an example, the paper introduces the technique of postposition dispose for numerical automatic control programming based on CAD/CAM integration, and explains by the example the process of postposition dispose for numerical control programming, generating the numerical control programming, and then producing and machining.

以Master CAM为例，介绍了基于 CAD /CAM一体化的数控自动编程加工中的后置处理技术，以及在当前条件下如何进行数控加工后置处理。

For the head-teacher of the class said that I had seriously broken the school rules,which led me to a three-day suspend class.

为什么呢？因为我的班主任说我严重的违反了校规，于是让我停课三天。

Many of them believe that the conversion of thousands of working-class folk in England spared that nation from the mass carnage and the tyranny that came with the revolution in France.

他们之中有许多人相信，在英国数以千计的劳工阶级之悔改信主使英国免於遭受如法国大革命所造成的大屠杀和专制暴政。