查询词典 field control

Fully automatic burn free block machine adopt PLC control system, it can set the various actions through adjust the flow, press etc technique parameters by touch screen,, achieve machine-human talking, the control system mainly included three units,(1) fully automatic batching and mixing control system (2) brick forming machine, pallets transferring control system (3) stacking block machine control system

全自动砌块成型免烧砖机PLC控制系统；切块成型机的全过程采用PLC智能控制，可通过触摸屏设定各个动作的流量、压力等技术参数，实现理想的人机对话。控制系统主要包括3个控制单元组成：（1）配料搅拌全自动程序控制系统，（2）成型主机、运输板机、升、卸板机自动程序控制系统，(3)码垛机控制系统。本系统的电器元件均为进口的品牌产品，如日本三菱、欧姆龙、德国西门子等，性能可靠，故障率低。

More than ten years ago,"the negative day" the numerical control line cutting engine bed first applies and the actual production, starts the control bench is uses the transistor separative element assembly to become, after but uses the integrated circuit, now to is using the direction which the microcomputer controls to develop, Therefore this definition design "the electrical fire colored thread cutter automatic control" is by 8031 shrapnel machine took the control core, step-by-steps the electrical machinery achievement to actuate the electrical machinery, the diffraction grating a closed-loop control system which constitutes as the position examination part.

十多年前，&负旦型&数控线切割机床首先应用于实际生产，最早控制台是由晶体管分离元件组装而成，逐渐采用集成电路，现在正向采用微型计算机控制的方向发展，因此本论文设计的&电火花线切割机的电气控制系统&是以89C55单片机作为控制核心，步进电机作为驱动电机，光栅作为位移检测元件而构成的一个闭环控制系统。

In this paper, a tooth for milling tenon electrical control of the entire process, electrical components will be used to achieve the milling work tenon tooth path of automatic and manual control, selected relay - access control systems to accomplish this purpose, it has the advantage of Line intuitive, are most commonly used electrical appliances, the replacement of convenience, cheaper prices, through repeated experiments and demonstration confirmed by the use of electrical components can accurately on a milling machine tenon teeth effective control of the machine tools to improve the control of a certain value .

本文研究了专用榫齿铣电气控制的全部过程，将利用电气元件来实现对榫齿铣工作路径的自动与手动控制，选用了继电-接触系统来完成这一控制目的，它的优点是线路直观，大部分电器均为常用电器，更换方便，价格较便宜，通过反复的实验与论证结果证实所用电气元件能准确对机床榫齿铣进行有效控制，对机床控制的改进有一定的参考价值。

In order to ensure the construction process safe and the bridge structure would reach its ideal state, lots of questions in its whole construction control and swivel ereetion construction control are discussed and studied.Firstly, based on the experiences about the cable-stayed bridge's construction control, do emulational anlysis to Sui Fenhe cable-stayed bridge by using the bridge analyzing program of BSAS and Dbridge, analyze the parameters' sensitivity, study the temperature effects, discern the relevant parameter's errors about construction control and optimize its construction state.Secondly, as an example of Sui Fenhe cable-stayed bridge's swivel erection construction control, present the design and construction techniques of simple point supporting and even articulation and level swivel erection for long-span cable-stayed bridge, study its load-bearing system, balance system, power system and adjustment system in detail, check its static stability on the state of swivel erection construction and monitor the whole swivel erection construction.

首先，在斜拉桥施工控制经验的基础上，用桥梁结构分析程序BSAS和Dbridge对绥芬河斜拉桥进行了详细的施工仿真分析，参数敏感性分析，温度效应分析，施工控制影响参数误差分析和结构施工状态的最优化控制；其次，以绥芬河斜拉桥转体施工控制为例，介绍了大跨度斜拉桥单点平铰水平转体设计与施工技术，详细研究斜拉桥单点平铰水平转体支承系统、平衡系统、动力系统和调整系统，并对本桥结构转体施工做静力稳定性验算及转体过程的监控。

Clinical study: 90 patients diagnosed in The Third Hospital of Beijing University according as diagnostic standards were divided into three groups stochastically:therapy group, control group I and control group II, each group has 30 patients, the therapy group was treated by the method of clarifying and descending the lungs and the stomach, the anti－cough decoction; the control group I was given acute bronchitis syrup and Jiawei Baohe pills; the control group II only given acute bronchitis syrup, after seven days treatment, the results show that the efficiency of the therapy group is 80%, that is higher than both of the control groups(p.01), the therapeutic principle and formula is effective and valued in clinic.

临床研究部分：以2001年9月－2002年3月在北京大学第三医院中医科门诊就诊的90例有胃内伤基础的外感咳嗽患者作为观察对象，随机分为3组，治疗组治以肃肺降胃法，用自拟汤药治疗；对照组I治以急支糖浆合加味保和丸；对照组II单纯用急支糖浆，并详细记录患者临床症状和体征的变化，经一个疗程（7天）的治疗，治疗组取得了80％的显效治愈率，显著优于对照组（P.01），说明这种立法与处方是可行的，具有较高的临床价值，并进一步拓宽了治疗外感咳嗽的思路与方法。

This paper makes use of PID control, Fuzzy- PID control based on single parameter these two control strategies to simulate the systems model. Compared with common vehicle, the results of simulation show that the vehicle equipped with the electromagnetic power steering system has better yaw velocity frequency response characteristic under condition with step input of steering wheel, so it has more betterhandling stability; Compared with PID control strategy, the results show that the Fuzzy-PID control strategy has the advantages, such as response fast, stabilize itself quickly and less over-altitude.

本文使用了PID、单参数自整定Fuzzy-PID两种控制策略对系统模型进行控制，仿真结果表明：相对于普通汽车，装有电磁式助力转向系统的汽车在方向盘转角阶跃输入的情况下，汽车横摆角速度频率响应特性更好，因此具有更好的操纵稳定性；而相对于采用PID控制，采用单参数自整定Fuzzy-PID控制又可以使系统响应更迅速、超调量更小、稳定更快。

The hot helium temperature follows HTR-10's nuclear power changes slowly, and there is a large coupling between them, so the RPHHT system adopts cascade control, the minor loop is fast, and the major loop is hot helium temperature control loop whose dynamic response is slow; there is also a large coupling between main helium loop and steam-water loop, and both the main steam temperature measure signal and the heating process of the once-through steam generator are delayed, therefore, the MHFMST applies cascade control, the minor is main helium flow control loop whose dynamic response is fast, and the major is the main steam temperature control loop whose dynamic response is slow.

本文运用机理建模法，建立了HTR-10系统动态控制模型，然后进行了动态性能仿真，将堆芯用集中参数表示，冷却剂按一维流动处理；直流蒸汽发生器按二回路工质不同的相分为预热段、蒸发段和过热段，建立了三环节控制模型，得到HTR-10系统控制模型；仿真结果与数值计算结果对比表明，本文所建立的控制模型，能近似地反映HTR-10的动态特性，适合设计控制系统。

For a class of Shunt-wound Active Power Line Conditioner, based on analysis of mathematical model of system and target of control, the algorithm of fuzzy variable structure sliding mode control is presented. The control algorithm can avoid complicated calculation of harmonic electric current in traditional control algorithm, and realize the feedback control of electric current. The algorithm is simple and easily implemented.

针对一类并联型有源电网调节器在分析系统数学模型和控制目标的基础上，提出了模糊滑模控制策略，避免了传统控制方法中复杂的谐波电流计算，实现对电源电流的闭环控制，该算法简单、易于实现，仿真结果证实了变结构滑模控制的有效性。

In normal fisher valve repair in general less damage to the implementing agencies fisher valves mainly in fisher sealed valve body and outer sealing maintenance organizations according to Jiangyin Oulei Si understanding fisher control valve sealed agencies and organizations outside the sealed according to the use of fisher control valve selection of different operating conditions change so to do maintenance on the essential Fisher control valve of the valve seal body of the fisher should be very understanding and to the maintenance of the Fisher control valve selection to do with confidence thus it will help Fisher control valve repairs!

在正常fisher阀门维修中，一般fisher阀门执行机构损坏较少，主要集中在fisher阀门内密封机构及外密封机构的维修上，据江阴市欧雷斯了解， fisher控制阀门的内密封机构及外密封机构、根据fisher控制阀的使用工况变化而选型不一，因此要做好Fisher调节阀维修就必需对fisher阀门的密封机构要相当了解，并且要对Fisher调节阀维修的选材做到胸有成竹，由此才有助于Fisher调节阀维修的工作！

Intelligent control technology of large-scale equipments in comprehensive mechanized coal mining face (including the electric explosion-proof technique, control circuit design of essence safety type and double-engine double-speed dragging heavy load control technique of scraper conveyer); no exceeding limit gas safety and high efficiency emission technique (including air flow control strategy, control method, and etc.); failure protection technique for safe power supply of mine power grid (including two-grade selective electric leakage protection and phase sensitive protection technique, etc.).

关键技术分别为多局部通风机故障诊断和冗余控制技术（包括掘进工作面供电系统多源信息融合、故障测寻、故障诊断、多局部通风机三重冗余控制方法和控制策略等）；综采工作面大型设备的智能控制技术（包括电气防爆技术、本质安全型控制电路设计、刮板输送机双机双速拖动重载控制技术等）；瓦斯无超限安全高效排放技术（包括风量控制策略、控制方法等）；矿井电网安全供电的故障保护技术（包括两级选择性漏电保护和相敏保护技术等）。

In this paper, we prove existence of positive entire solutions of a class quasi linear elliptic systems.

本文讨论了一类满足初值条件的非线性椭圆型方程组正整体解的存在性。

I am a graduate of Yale University.

我是耶鲁大学毕业生。