This paper explained the principle of constant-pressure water supply on the basis of characteristic curve of pipeline resistance and water pump head.
本文首先根据供水系统的管阻特性曲线和水泵扬程特性曲线，分析了恒压供水的原理；
The cooling suit runs off of the same onboard battery that powers the suit's lamp, fan, and comm link; a pump circulates a liter of ice water (stored in a specially shaped bottle) from head to toe.
冷却装置和套服中的照明、风扇、通讯器使用同样的内置电源；一个帮浦令一公升冰水(储存在一个形状特殊的容器中)从头到脚进行循环。
Multi-stage centrifugal pump is mainly used for high head applications environment, use deep, high-rise residential water supply, fire water supply.
多级离心泵主要用于高扬程的应用环境，应用于深井、高层住宅的供水、消防供水等。
If the transport of liquid viscosity and density difference between the larger and water, shall account for the pump parameters: flow, pressure head and shaft power.
若被输送液体的粘度和密度与水相差较大时，应核算泵的特性参数：流量、压头和轴功率。
When pumping water, the head, shaft power and efficiency of the pump decrease with the reducing in impeller diameter.
输送水时，叶轮切割后，泵的扬程、轴功率、效率都下降。
A check valve (3) can prevent the natural chemical absorption water head of the water head when the manual pump or the mechanical pump stops to work.
止回阀(3)起当手压或机械泵停止工作时能阻止水位差的自然吸药。
The nonlinear relation between node pressure head of the pipe network and water capacity and pressure of water supply pump station was deduced by SVM.
利用支持向量机推求管网节点水头和供水泵站供水量、供水压力的非线性关系。
The water supply system with pump-head tank joint water supply is a mature technology widely used in high-rise buildings.
水泵—高位水箱联合供水的生活给水系统是广泛应用于高层建筑的成熟技术。
In this range of air-water ratio the flow rate of mixture slightly decreased, the axial power increased linearly and the pump efficiency increased parabolically with a rise in effective head.
在稳定工作区范围内，不同的含气量条件下，随着排出压头的增加，混合液总量稍有下降，轴功率直线上升，效率呈抛物线变化。
I vertex you! This monkey isn't a head to pump water and forbid him to jump!
我顶你！这个猴子是不是脑袋抽水了，不许他去跳！
Axial flow pump with flow rate, head low, which is widely used for agricultural irrigation and urban water supply.
轴流泵具有流量大、扬程低的特点，广泛地用于农业排灌、城市供水等领域。
Points out that the cubic law of pump power is not valid for the cooling water system of central air conditioning for it is an open system. The static head should be the lift in a cooling tower.
指出集中空调冷却水系统为开式系统，一般不适用功率三次方定律，静压头应为冷却塔塔体扬程，并提出了冷却水泵变速时轴功率的计算公式；
By using this method presented in this paper, not only the optimum design of main pipe net was given, but the water head and flow and pump type were decided.
所提出的方法，不仅能得出一个优化的干管管网，而且还能确定出所需水泵扬程及流量，并确定水泵型号。
Because of these low-lying areas water lift is not high but the irrigation or drainage water a considerable loser should adopt a "low-head large flow" performance characteristics of axial flow pump.
这些地区由于地势低洼，提水扬程不高，但农田灌溉或排涝的输水量相称大，应该采用“低扬程、大流量”性能特点的轴流泵。
In addition, a liquid display panel, in infrared receiving device, a flux monitor, a water pump and other functional units can be further in the shower spray-head.
此外，该淋浴器喷头中还可进一步加设液晶显示面板、红外线接收装置和流量监测器及水泵等功能单元。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
The paper introduces the protection measures of pumping-off water hammer in the design of high-flowrate high-head long-distance water-delivery booster pump station.
介绍一种大流量高扬程远距离输水加压泵站设计中停泵水锤防护措施。
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