查询词典 flow control

According to the understanding of the flow characteristics, a mechanism of formation of vortex streets has been proposed to be the absolute instability of the wake, and several methods of flow control have been developed and shown successful.

根据表面流动及尾流特性的研究结果，从流动稳定性的角度提出了尾流中涡街产生的机理，在于尾流中存在着绝对不稳定的区域。基于对流动特性的理解，从改变流动稳定性的角度，寻求各种流动控制方法。试验结果表明这些方法是成功的。

Flow characteristics of options in the heating system, the balance valve usually installed in the trunk of the branch point, the user's heat at the entrance to a very heat of the sub-catchment devices and thermal stations in the flow control (including regulating valves and Electric valves).

流量特性的选择，在供热系统中，平衡阀一般装在干线的分支点，用户的热入口处，以极热源的分、集水器和热力站中的流量控制。

The author briefly introduces the technological flow,composition,features and technicalrequirements of DCS and FF instruments,with the emphasis on the description of design and debugging of the process control systemof carbinol DrodUCtion,including the architecture of the control system,system configuration of using Control Builder F （V7.1）soft—ware platform,the configu ration of instrument function blocks and the program loading and debugging process

作者简介了甲醇生产的工艺流程、DCS和FF仪表的构成、特点及技术要求；重点描述了该甲醇生产过程控制系统的设计和调试，包括控制系统的结构、采用Control Builder F（V7.1版本）软件平台的系统组态、仪表功能块的组态和程序加载调试过程。

Germany FRING Forint flow control valve is the field of the Asia-Pacific region a major producer and supplier of one of the company is headquartered in Frankfurt, the company is committed to research and development of fluid control valves, fluid control equipment, production systems, in many countries and have produced valve gate base.

德国FRING福林阀门是亚太地区流体控制领域的主要生产和供应商之一，公司总部位于法兰克福，公司致力于科研开发流体控制阀门，生产流体控制设备系统，在许多个国家均有生产阀门基地。

Regardless of the pump speed, pressure or flow of the slip road size, setting a flow control valve can guarantee that the total equipment required for the flow.

不论泵的转速、工作压力或支路需要的流量大小，定值一次流量控制阀总可保证设备工作所需的流量。

By means of flow field software PHOENICS,the flow field of four-strand T type tundish in a specific steel plant is simulated in this paper and the velocity vector diagram and streamline graph of the hot metal flowing under different settings of the flow control device s are analyzed and compared.

应用流场计算软件PHOENICS对某厂四流T型中间包流场进行了数值模拟，分析比较了不同控流装置下钢液流动的速度矢量图和流线图。

This paper hereby introduces the cooling process of the common 160,000 m^3-in-capacity atmospheric LNG storage tank in China, the preconditions and matters to which attention is paid upon the cooling of tank. It also discusses some commissioning techniques needed in the cooling process, including pressure control, cooling medium supply and its flow control, process monitoring and cooling rate control, etc. The paper points out that the displacement of pipelines is easily to be overlarge and flange leakage takes place frequently in the cooling process and it gives corresponding solutions.

为此，详细介绍了国内LNG接收站常用16×10^4 立方分尺常压LNG储罐的冷却过程，分析了LNG储罐冷却前应具备的条件及注意事项，讨论了LNG储罐冷却过程中的压力控制、冷却介质供应及流量控制、冷却过程的监控及冷却速率控制等调试技术，指出了冷却过程容易出现管线位移过大、法兰泄漏等问题，并给出了相应解决方法。

For studying the performance of a self-sensor in the driving mode of variable-voltage control and variable time of flow control, a piston displacement measurement and control software based on LabVIEW (version 7.0) was designed, and the experimental study was carried out.

为了研究自传感器的性能，设计了一套基于虚拟仪器的活塞位移测控系统，分别对变电压驱动和变可控硅的导通时间驱动方式下的自传感器特性进行了实验研究。

1 ACRII ACRI 序号产品名称 equipment 技术说明 technical specification submit fabrication of the involved components such as main control valve, filter, pressure control valve, pressure measurement meter, flow control valve, leak detection device, quick shut off valve, pressure regulating valve, protection device for insufficient pressure, piping for ignition nozzle, hand-valve, pressure controller, magnet valve, pressure indicator, complying with EU standard and can only apply after the approval of the contractor

其中包含：主燃料供给和控制管路的天然气主关断阀，天然气过滤器，天然气压力调节阀，压力检测表，天然气流量控制调节阀，天然气泄露检测器，快速关断阀，天然气压力恒压器，天然气压力不足保护器等和点火烧嘴燃料控制管路的天然气手动关断阀，天然气压力控制器，天然气电磁阀和流量计等元器件配置依据欧盟标准。

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）。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。