查询词典 flow control

The piston pump has many kinds of structures; the variable displacement axial piston pump with a swash plate is a better kind among them and could best match the requirements of large flow, high pressure, and small volume. It also has a advantage of easily realizing the control of flow and pressure.

柱塞泵有许多结构形式，斜盘式轴向柱塞变量泵是诸多柱塞泵结构中结构比较先进，最能适应现代作业大流量、高压力、体积小要求的柱塞泵结构形式；并且对于实现多种流量、压力控制有着较大的优势。

Specifications: DN15 ~ DN800; Pressure Range: 10 ~ 900KPa; Flow control tube for a total portfolio of the surface without any plating material; Working Pressure: ALE Series Stroke Stop and Stroke Switch 1600KPa or 2500KPa; Operating temperature: 120 ℃; Mass-flow error:± 5%; Connection: threaded or external flanges.

规格：DN15～DN800；压差范围：10～900KPa；流量控制筒为一整体组合，表面无任何电镀物料；工作压力：1600KPa 或 2500KPa；工作温度：120℃；流量误差：±5%；连接方式：丝扣或外接法兰。

The effects of gas-liquid ratio, oil saturation and permeability on nitrogen foam flow law in porous media were studied systemly. Oil saturation is the main influential factor of foam's fluidity, and just for this, the aggravation of formation heterogeneity has little effect on the effect of the profile control, foam's flow law is decided by remaining oil distribution.

系统研究了气液比、含油饱和度、渗透率对氮气泡沫渗流规律的影响，结果表明，含油饱和度是影响氮气泡沫渗流阻力的最主要因素，泡沫渗流阻力随着含油饱和度的升高而降低，剩余油分布规律决定了调驱过程中氮气泡沫的渗流规律，受此影响，地层非均质性的增加对泡沫调剖效果的影响较小。

Based on the survey of the traffic flow in Changchun city arteries, the scatter charts of vehicle speed-low data were plotted, the linear regression equations of scatter plots and their boundaries were derived and compared with the curve of Greenshields speed-flow model and the scatter plot of the freeway data, thus the speed-low characteristics in urban arteries were established, being of help for the traffic managers to determine the traffic signal control strategy.

以长春市干线道路的交通流实测数据为依据，绘制了速度流量的散点图，建立了散点图及边界的线性回归方程，并与Greenshields速度流量理论模型曲线、高速公路的速度-流量散点图进行了对比，分析了城市道路的速度-量特性。实际应用表明，该特性分析能为交通管理者确定信号控制策略提供速度流量依据。

Basic knowledge of the valve, the valve is used to control fluid flow, pressure and flow devices.

阀门基本知识，阀门是用以控制流体流量、压力和流向的装置。

Was researched. The work module of rudder was discussed and studied by simulation in side jet and aerodynamic compound control manner, the effect on guidance accuracy by control cycle of attitude control engine and action cycle of control loop was simulated.

重点对采用燃气动力／气动力复合控制方式中舵系统的工作模式进行了探讨及仿真研究，对姿控发动机控制周期及控制回路工作周期对制导精度的影响进行了初步仿真研究。

In this paper, the theory studies, digital simulation and microcomputer control experiments to a robot have proved that the AFDC system of robot has signally effective intelligent dynamic control functions and makes robot to have excellent dynamic response performances and motion accurary by measuring only input and output of the robot, and that the system structure and control algorithm is more simple, reliable, and more easy to be used on common microcomputer then another high-level dynamic control systems of robot.

文章在理论研究、仿真控制和机器人的微机控制试验方面的研究工作表明，文中提出的机器人自适应模糊动态控制系统既具有显著有效的智能动态控制功能。能在仅测量输入-输出信息条件下，保持机器人取得优秀的响应性能和运动精度；又在结构和算法上比一般的高级机器人动态控制系统更简洁、可靠和易于在普通微机上实时在线实现。

According to evaluation of the thermal, hydraulic, environmental and mechanic characteristics and energy performance of building and VAV air-conditioning system, and evaluation of the control performance of local control loops using the simulator of VAV system, this paper presents five on-line supervisory control strategies for local control loops: on-line optimization of VAV supply air static pressure set-point, on-line optimization of AHU supply air temperature set-point, on-line optimization of on/off set of CAV sub-system, on-line optimization of outdoor air set-point and on-line optimization of chilled water secondary pump pressure set-point.

通过数字仿真器对建筑物及其变风量空调系统的热力、动力、环境和能耗等运行特性的模拟，以及对系统常规采用的下位机控制回路可控性和稳定性等控制特性的研究和分析，本文先从局部的角度开展了系统局部优化的研究。提出并在仿真器上分别实施了VAV送风静压设定的实时优化，AHU送风温度设定的实时优化，CAV子系统开／停的实时优化，新风量设定的实时优化以及二级泵冷媒水供水压差设定的实时优化。

In order to prove the reliability, test studies have been primarily carried out in the indoor soil bin. The data of the vehicle driving state parameters under the same or different terrain are analyzed. The process curves are compared by different control schemes. The theoretical model of the optimum driving state is reliable and fuzzy control scheme is feasible. The disturbances and unknown factors of control system are analyzed. Test results prove that the half-tracked air-cushion vehicle can drive steadily under control of the computer. At the same time the sensors used to measure soil mechanics characteristics on line need to be developed. And it is the important problem to be solved in the future study. The necessary regulation and correction are put up. So the studies in this paper provide some instruction for the further research work.

为了验证本文提出的最佳工作状态及最佳垫压理论，并分析控制系统的可靠性和稳定性，本文在半履带式气垫车的模型车上，在室内土槽中进行了初步的实车性能和理论验证试验，考察了在同种和不同土壤条件下气垫车的行驶状态参数的测量数据，比较了采用不同控制方法下的过程曲线，验证了最佳工作状态的理论模型和模糊控制系统方案的可行性与可靠性，从而保证了采用自整定模糊PID控制器能够使半履带式气垫车在稳定行驶最佳工作状态下；同时通过试验研究，分析了系统中各干扰与未知因素，对控制方案进行了相应的调整和修正，为今后进一步的研究工作提供了一定的指导。

The machine's control system adopts a delta DVP14SS11R and a module of DVP16SP11R (16 I/O expansion module).It Composes 40 PLC control section. It adopts a module of DVP02DA-S (2 group simulation quantity output module) to control main frequency conversion and fluctuation frequency conversion actuation. The machine also adopts a delta TP04-AS2 Text display monitor carrying on the system external input with to reel thread the data monitoring. Use plate alternating current machine driver VFD-B-P series frequency changer control master drive electrical machinery and ring board electrical machinery.

该机型整个控制系统采用了一套台达DVP14SS11R控制单元，配DVP16SP11R扩展模块(16点I/O扩展)，来组成40点PLC控制部分，采用一块DVP02DA-S(2路模拟量输出模块)分别控制主变频和升降变频驱动，同时采用台达TP04-AS2文本显示屏进行系统外部输入与纺纱数据的监控，使用台达VFD-B-P系列变频器控制主传动电机和钢领板电机。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。