查询词典 pressure pump

The better devices consist of a pump and appliance with three or more segment which sequentially apply pressure along the extremity, distally to proximally.

更好的设备包括一个泵和设备有三个或三个以上部分按顺序施加压力，而沿线的肢体，远端至近端。

The first generation microthruster integrates a polyimide peristaltic pump with an electrostatically actuated valve, pressure sensors and a temperature sensor.

第一种微推进器集成了聚酰亚胺蠕动泵、静电主动阀、压力传感器和温度传感器。

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

Engineer, 12 engineers, 19 assistances, covering pharmaceutical process, pharmaceutical equipment, structure, ventilation, HVAC, geothermic pump, hydraulic, electrical, automation, pressure container, technical economy and IT.

设有制药工艺、制药设备、建筑结构、采暖通风、空调净化、地源热泵、给水排水、供配电、电气自动化、压力容器、技术经济、计算机等专业。

The study shows that through choosing the characteristics of the feedwater valve and throttle valve in the equipment, the shifting run of turbine pump, can realize the pressure drop of the feedwater valve invariableness, which can reduce the energy loss and improve the control characteristics of the feedwater system.

本文的研究表明，在核动力装置二回路给水系统中，通过选定节流阀和给水阀特性，由水泵变速运行可以实现给水阀两端的压差恒定，大大改善了给水系统的控制特性。

For high and low alarms, overfill protection, pump control, including wide pressure and temperature requirements, and hygienic applications.

对于高，低报警，溢流保护，泵控制，包括宽的压力和温度的要求，和卫生应用。

RB Series peristaltic pump can transfer the materiel through liquid now with the pressure of peristalsis by gyred roller.

RB系列蠕动泵是通过旋转的滚柱使胶管蠕动来输送液体的。

As an unloader it does essentially the same thing except that when you close the gun the unloader traps the pressure in the hose and locks the unloader open, allowing all the water the pump is pumping to recirculate back to the inlet.

当系统压力超过弹簧张力时，水流从喷嘴回流到泵进口，进行循环。

Classics expects dyadic revivalistic design; 15 Bar pump pressure , special field make Espresso; Let you savour pure coffee.

经典意式复古设计；15Bar泵压力，专业制作Espresso；让你品味地道的咖啡。

And the extreme centrifugal force from the enlarged higher impeller stops the solution as it entering the higher impellr. At the same time, the full solution in the chamber stops the air mixed with the solution in the chamber to go down. This way masterly eliminates both big problems of vertical sealless pump, overflow at high pressure and bubbles at big flow.

上部叶轮时，即受加大之背叶的强大阻力而无法上升，但上部叶轮所卷入液体中的空气，却受阻於水室中贮满的液体而无法下降，如此巧妙地排除了立式无轴封泵高压时溢流，或大流量时吸入空气的两大难题。

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％。