Because of the difficulty in modeling, the uncertainty and time lag of slide valve in series - parallel connection screw compressors system, the paper presents a control project based on the combination of expert rules and PID algorithm to solve the stabilization and speediness contradiction of the suction - exhaust pressure under various loads.
针对串并联螺杆压缩机系统中的模型难以建立、能量滑阀的不确定性和时间滞后等问题，为解决压缩机吸排气压力在各种负荷变化时稳定性和快速性的矛盾问题，该文提出了一种专家规则与PID控制算法结合的控制方案，运用MATLAB对系统中控制回路进行仿真。
This paper describes the principle of measuring needle valve seating time in electromagnetic injector, then presents the constitution and measuring procedure of a measuring system for needle valve seating time lag in electromagnetic injector and analyses the measuring error in the system.
阐述了电磁式喷油器针阀落座时刻的检测原理，介绍了一种电磁式喷油器针阀落座滞后时间测量系统的组成和测量过程，并对系统的测量误差进行了分析。
Mode that evolution that our country city bus passenger information the system be placed in a horizontal for than time lag, large passenger can acquire the information few, for the sake of the settle this kind of problem, necessity strongly develop the our country's city bus passenger information the system. come from this object, under the teacher's guide, my design this city the bus outs this applied procedure of search system of row wiring. in the design process, analyzed the our country the city bus passenger information the system's evolution actual state first, and seek the wrong sum scant. the next in order, on versus the ground wok that bus passenger outs row mental state character the progress to analysis, considered the passenger select the bus wiring the factor that make policy, and create according to time area concentration diagram charge and reasonal form of select of the bus wiring of the expenses charge. here the ground wok is upper, progress procedure the framing design of the valve key part, clean up the way of thinking of pure procedure design. after is a procedure valve key part of in a specific way realizes, include
我国城市公交乘客信息系统的发展处于一个较落后的水平，广大乘客可以获得信息的方式很少，为了解决这种问题，需要大力发展我国的城市公交乘客信息系统出于这个目的，在老师的指导下，我设计了这个城市公交出行线路查询系统这个应用程序在设计过程中，首先分析了我国城市公交乘客信息系统的发展现状，找出问题和不足其次，在对公交乘客出行心理特征进行分析的基础上，考虑了乘客选择公交线路决策的因素，建立了基于时间价值和费用价值的公交线路选择合理的模型在此基础上，进行程序关键部分的框架设计，理清程序设计思路之后是程序关键部分的具体实现，包括关键程序原代码最后完成功能介绍和使用说明运用vb语言或方法，对芜湖市的供教线路查询系统进行了程序设计，并进行了模拟实验本次设计的软件较为符合公交运营的实际情况，充分考虑了不同公交乘客的实际要求，运算速度较快，有较强的实际应用价值
Mode that evolution that our country city bus passenger information the system be placed in a horizontal for than time lag, large passenger can acquire the information few, for the sake of the settle this kind of problem, necessity strongly develop the our country's city bus passenger information the system. come from this object, under the teacher's guide, my design this city the bus outs this applied procedure of search system of row wiring. in the design process, analyzed the our country the city bus passenger information the system's evolution actual state first, and seek the wrong sum scant. the next in order, on versus the ground wok that bus passenger outs row mental state character the progress to analysis, considered the passenger select the bus wiring the factor that make policy, and create according to time area concentration diagram charge and reasonal form of select of the bus wiring of the expenses charge. here the ground wok is upper, progress procedure the framing design of the valve key part, clean up the way of thinking of pure procedure design. after is a procedure valve key part of in a specific way realizes, include valve key procedure primaries of code. finally fulfillment function introduction sum instruction. application vb language or device, versused providing of wuhu city to teach the procedure design, and progress simulation experiment. this bat batch the design's software than for matching bus actual occasion, sufficient consideration that manage the actual request of the different bus passenger, operation the partial velocity quick, have the stronger actual applied charge.
我国城市公交乘客信息系统的发展处于一个较落后的水平，广大乘客可以获得信息的方式很少，为了解决这种问题，需要大力发展我国的城市公交乘客信息系统出于这个目的，在老师的指导下，我设计了这个城市公交出行线路查询系统这个应用程序在设计过程中，首先分析了我国城市公交乘客信息系统的发展现状，找出问题和不足其次，在对公交乘客出行心理特征进行分析的基础上，考虑了乘客选择公交线路决策的因素，建立了基于时间价值和费用价值的公交线路选择合理的模型在此基础上，进行程序关键部分的框架设计，理清程序设计思路之后是程序关键部分的具体实现，包括关键程序原代码最后完成功能介绍和使用说明运用vb语言或方法，对芜湖市的供教线路查询系统进行了程序设计，并进行了模拟实验本次设计的软件较为符合公交运营的实际情况，充分考虑了不同公交乘客的实际要求，运算速度较快，有较强的实际应用价值关键词：，公交查询信息系统换乘
After the accident stopped pumping water through the Beijing begins to flow back, in the inverted under the influence of leakage currents, rapid closure of check valve, check valve due to malfunction or if the bearing friction and inertia effects are likely to lag behind the valve begins to flow back the time, that flow down to a certain value, even at maximum flow rate down the rapid closure of the moment, you can have a very large valve at the pressure.
事故停泵后水流通过京开始倒流，在倒泄水流的作用下，止回阀迅速关闭，如果止回阀由于故障或支座摩阻及其惯性的影响，止回阀有可能滞后于开始倒流的时间，即在倒流量增至一定值，甚至在最大倒流量的瞬间迅速关闭，则能在止回阀处产生非常大的压力。
Finally take the relay valve for example, time lag characteristic of air brake actuating system is discussed and the spectrum analysis is introduced into the investigation and assessment of dynamic characteristics for air brake actuating system.
以继动阀为例，探讨了气制动传动系统滞后反应时间特性，并将频谱分析引入到对气制动传动系统动态特性的分析与评价中。
The experiment and calculating example show when concentration of polymer solution increases angle of lag of valve ball opening increases and pump admission coefficient drops.
试验和计算实例表明，随着聚合物浓度的增加，阀球开启滞后角度增大，泵充满系数降低。
Relative to the developed countries, China's pneumatic diaphragm valve valve industry is still lag behind.
相对发达国家而言，我国气动隔膜阀阀门行业还比较落后。
Based on the influence of cycle period on gasification efficiency and the effect of lag time of programmed control valve, the optimal cycle period has been obtained as 120s.
在计算机上对模型进行数值仿真计算，摸索出循环周期对气化效率的变化规律，结合程序控制阀门滞后时间的影响，得出优化的循环周期为120s。
In view of the response lag in CVT ratio control, a control algorithm is proposed for compensating the response lag in proportional pressure reducing valve control.
针对系统固有的速比控制滞后，提出了能够补偿滞后的控制算法来对比例减压阀进行控制。
It is an ideal selection to use a-Si: H film, which is cheap and with small lag, as the photoconductive layer of liquid crystal light valve.
用惰性小而廉价的a-Si：H膜作液晶光阀的光导层是一种理想选择。
A Study on A Measuring System for Needle Valve Seating Time Lag in Electromagnetic Injector
电磁式喷油器针阀落座滞后时间测量系统的研究
Too much valve clearance causes a lag in valve timing causing engine valve train imbalance.
气门间隙过大会引起气门调时延迟，造成引擎气门组系不平衡。