型线的构成对压缩机轴功率的影响可以忽略。
Cylinder profile has little influence on shaft power of rotary vane compressor.
在这些比赛美洲将轴功率提供的唯一真正的阻力。
And in these contests the Americas would offer the only real resistance to the Axis power.
输送水时，叶轮切割后，泵的扬程、轴功率、效率都下降。
When pumping water, the head, shaft power and efficiency of the pump decrease with the reducing in impeller diameter.
压缩机最大轴功率工况是保证压缩机安全运行的重要指标。
The maximum shaft power condition is an important index to guarantee the safety operation of compressors.
最小轴功率法是泵站运行优化方法中比较实用和有效的方法。
As to simplify the procedure, this thesis USES the GA method to optimize the pumps and avoids the complicated operation.
由上可见，当泵运送的液体粘度不同时，泵的轴功率也将不同。
Is clear from the viscosity of the fluid delivery when the pump is not the same time, the pump shaft power will be different.
电动机输入功率和水泵轴功率测试是泵站现场测试的重要内容。
The input power of motor and shaft power of pump are key measurements in field test of pumping stations.
由上可见，当泵运送的液体粘度不同时，泵的轴功率也将不同。
By visible, when the pump transporting liquid viscosity is not at the same time, the pump shaft power will also be different.
轴功率的计算误差随着转速的增加而增大，随着压力的增加而减小。
The calculation error in predicting brake power increases with increasing engine speed and decreases with increasing pressure.
并详尽地讨论了应力应变电测技术在船用柴油机轴功率测量中的应用。
It also discusses in detail the application of the technique to measurement of the power of a Marine diesel engine.
一方面使泵的效率提高，轴功率降低，另一方面解决了泵的泄漏问题。
On the one hand the efficiency for pumps will rise and axial power was dropped on the other hand has solved leak out of pumps.
传统的坐式摩托车发动机台架性能试验方法是测试发动机的曲轴功率。
The traditional method for the measurement of scooter engine performances with test bench is to measure the power of engine crankshaft.
分析了罗茨鼓风机轴功率随压差和转速变化的特性，导出了相应的换算公式。
The character on change of the shaft power with the differential pressure or rotational speed for Roots blower is analysed, the conversion formulas for the shaft power are deduced.
按泵设计点轴功率1或1.4倍配备电机，超过匹配功率，请用户在订货时提出。
Motor matched according to 1 or 1.4 power. If motor power exceed, the customer must point out in order.
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.
研究表明，流量、扬程、轴功率和效率切割指数具体数值都与普通清水离心泵不同。
The results show that the values of the flow rate, head, shaft power and efficiency trim exponents differ from existing trim exponents for normal centrifugal water pumps.
阐述了轴功率测量系统的原理、数学方法、应变电测技术，系统的设计及数据处理。
The theory, mathematics method, technology of reacting electrical measurement is introduced in this article. The design of the system and the data processing for the system is also introduced.
粘度增大时，流量和轴功率均增加，但由于其中关系较复杂，必要时可向专业人员咨询。
Viscosity increases, flow rate and shaft power was increased, but because of the relationship between them is more complex and when necessary to consult professionals.
作为计算转换效率的重要手段，轴功率测量已成为船厂及船东验收新造船舶的主要参数。
As an important method of measuring the conversion efficiency, the measuring of shaft power has become an major parameter in newly-built ships' inspection and acceptance.
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。
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.
同时，从能耗角度上讲，用户更关心的不是空压机轴功率的能耗比，而是输入功率的能耗比。
At the same time, from the energy consumption perspective, the user more not concerned with the air compressor shaft power energy consumption, but the input power than the energy consumption ratio.
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.
为保证叶轮的扬程和流量，必须降低轴功率，减少能耗，提高叶轮的效率，才能达到节能减耗的效果。
To ensure the impeller head and flow ratings, shaft power should be reduced, to reduce energy consumption, and improve impeller efficiency so as to save energy.
但由于目前石油和化工用螺杆式压缩机对流量、排出压力、轴功率等要求较高，目前基本上还依赖进口。
But because it now oil and chemical use screw compressor for flow and pressure from the shaft power, high demands, at present basically also rely on imports.
采用国际通用标准对压缩机气体组成、容积流量、轴功率、进排气压力和进排气温度等指标进行了测定。
Gas composition, volume flow rate, axial power, pressure and temperature of inlet and discharge gases of the compressor have been evaluated with the international general standard.
分析结果表明，对于常用的水系统控制方式而言，水泵转速（流量）比与轴功率比的三次幂关系不成立；
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
将热力学方法与电工仪表测算电动机轴功率方法结合起来，可以较准确地测出一台工业用大型水泵的性能。
An in-situ test of large industrial water primps characteristics, which is a combination of thermodynamical method and motor shaft power measurement, is described in this paper.
通过测量主轴功率获得切向磨削力，讨论了加工参数，如切深、进给率以及砂轮粒度对切向磨削力的影响。
Tangential grinding forces are obtained through monitoring spindle power and the ir variations are studied with process parameters such as depth of cut, feedrate and wheel grit size.
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。
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.
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；
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.
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