在使用扬程范围内使用，保证电机无过载。
In the context of the use of lift to use, to ensure Motor overload.
适用于清洁的或污染的、大流量、低扬程的液体。
These pumps are suitable for clean or polluted, large quantities and low heads.
用户确认泵出口去丁醇处理装置的最大扬程是合适的。
Ctc maximum head is suitable for pump discharge to butanol handling facility.
水温越高，在局部的真空下水更容易煮沸，因此减少了扬程。
The higher the water temperature , the more likely it is to boil when exposed to a partial vacuum , thus reducing suction lift.
低比转速泵几何参数对扬程的影响，应当侧重于综合影响的研究。
The influences of geometrical parameters on low specific pump head should be emphasized on comprehensive influence.
一般的说，当流量小时，扬程就高，随着流量的增加扬程就逐渐下降。
The general said, when traffic hours, high on the head, with the increase in traffic on the lift gradually declining.
论述了离心泵转速提高对流量、扬程、功率、汽蚀余量等参数的影响。
The paper discusses the effect of rotation rate on property parameters such as flow volume, delivery lift, power and cavitation etc.
具有全扬程泵的特点，能够在全扬程范围内工作而保证电机不会过载。
It has full head feature. It can operate within the full head scope with assurance that the motor will not be overload.
数值结果表明，间隙增加，扬程下降，特别是越在小流量工况下越明显。
The numerical result shows increasing the tip clearance will reduce hydrostatic head, especially at small flow rate.
介绍了如何通过计算消防水泵的扬程、流量和功率来选择消防水泵的型号。
The paper introduces how to choose fire water pumps through calculation of stroke, flow and power of fire water pumps.
水力部分：采用优秀水力模型设计，使水泵流量、扬程、效率三者更为合理。
Waterpower part: adopting the perfect waterpower model design to make the runoff, lift and efficiency of the pump more reasonably.
此外，有部分用户还随意水泵进、出管的管径，这些对扬程也有一定的影响。
In addition, some users can pump into the pipe diameter, which head will have an appreciable effect.
本文介绍了国内关于经济扬程现有的几种计算方法，并分别进行了分析评价。
Some useful methods provailed in our country are presented here for calculating the economical head in pumping irrigation.
在效率合格的情况下，井用潜水泵的叶轮扬程和流量偏高时会产生无功损耗。
When submersible pumps for wells have qualified efficiency, the high head and flow of impellers will generate reactive power loss.
低扬程泵装置有多种型式，竖井式贯流泵装置是一种较新的低扬程泵装置型式。
Low head pump system has several types, among which pit tubular pump system is a new one.
甲烷的短距起落801采用了高尾配置，使飞机容易实现旋转升降高扬程在起飞。
The STOL ch 801 USES a high tail configuration to allow easy rotation of the aircraft to achieve high lift during take-offs and landings.
在直线压缩机的应用设计中，油泵的扬程对泵油量的影响非常小，可以忽略不计。
In linear compressor design. The delivery lift has little influence on oil flow rate, so it can be ignored.
在计算泵提供给气体的扬程时给出了三种算法，并对实例计算结果进行了分析比较。
About the calculation on the discharge head provided to gas by pump, the paper presents three kinds of calculation methods, analyzes and compares the case calculation results.
计算了泵的扬程、轴功率和效率，并与试验进行了对比，验证了计算方法的可行性。
By comparing the calculated water head, shaft power and efficiency with the experimental results, the method was proved to he feasible.
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。
Multi-stage centrifugal pump is mainly used for high head applications environment, use deep, high-rise residential water supply, fire water supply.
介绍了离心式水泵扬程和流量确定方法，并对扬程调整改造中的节能技术进行了探讨。
The paper introduces the method to determine the stroke and flow of centrifugal pump, and discusses the saving-energy technology in the process of stroke regulation.
甲烷的短距起落801使用一个特殊的翼型设计，达到非常高扬程，低失速速度，强度高。
The STOL ch 801 USES a special airfoil design to achieve very high lift, low stall speeds, and high strength.
在正常流量以上，当速度分布相当稳定时，压力和总扬程可由速度分布推得，并具有较高精度。
At normal delivery and above, when velocity distributions are fairly steady, the pressure and total head generated may be derived from the velocity distributions with reasonable accuracy.
从性能上讲，该型式叶轮效率高和普通闭式叶轮相差不大，但用该型式叶轮泵扬程曲线较为陡降。
From the performance perspective, the type of impeller and the general efficiency closed impeller or less the same, but the type of impeller pump head curve dropped more.
叶片型线的选择应满足边界层不分离条件及由欧拉方程——泵的基本方程所确定的理论扬程条件。
The choice of vane curve should satisfy the conditions of boundary layer non-separation and theoretical distance head by Eular equation-the basic equation of pumps.
轴流泵叶片水力矩随流量变化的关系曲线存在一个马鞍区，并与流量-扬程曲线的马鞍区相对应。
There exists a saddle type zone in the hydraulic moment curve of axial-flow pump blades which corresponds to the saddle zone of discharge-head characteristic curve of the pump.
叶片数对扬程切割指数的影响最大，对流量切割指数影响较小，对轴功率和效率切割指数影响最小。
The effect of the number of blades on the head exponent is the largest, on flow rate exponent is lager and on power, efficiency exponents are minimal.
变速调节我们已经知道，轴流泵是在一定转速下工作的，而且获得相应的流量、扬程、功率和效率等。
Variable-speed control we already know, at a certain speed axial flow pump are working under, and to obtain the corresponding flow, lift, power and efficiency.
变速调节我们已经知道，轴流泵是在一定转速下工作的，而且获得相应的流量、扬程、功率和效率等。
Variable-speed control we already know, at a certain speed axial flow pump are working under, and to obtain the corresponding flow, lift, power and efficiency.
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