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1)  Performance curve
性能曲线
1.
A pump performance curve recovery method based on skeleton;
一种基于骨架的水泵性能曲线复原方法
2.
Digitization and Conversion of Pump Performance Curve;
水泵综合性能曲线的数字化及还原
3.
This article introduced the basic principle and the calculate process of the on-line detection system for centrifugal-pump running parameters,and the method of curve fitting of Q—H、Q—N performance curves of centrifugal-pump.
介绍了离心泵装置运行参数在线检测系统的基本原理与方法、计算程序流程,以及离心泵Q—H、Q—N性能曲线的拟合。
2)  Characteristic curve
性能曲线
1.
Least square fitting of pump characteristic curve by orthogonal function;
用正交函数实现水泵性能曲线的最小二乘拟合
2.
The paper expatiates on the mechanism of variable velocity working of the pump by analyzing its characteristic curves,introduces and compares several kinds of its variable velocity modes and their merits and demerits,indicates the advantages of the variable velocity feed water pump if it s used.
本文通过对给水泵的性能曲线分析 ,阐明了其变速调节的机理。
3.
The characteristic curves of two methods were gotten by testing.
阐述了变频调节和阀门调节空调机组风系统风量的特性 ,通过分析、测试与研究 ,得到了两种调节方法下的调节性能曲线
3)  performance curves
性能曲线
1.
By establishing mathematical model based on centrifugal fan performance curves and making use of chart function in Excel 2000,the centrifugal fan performance curves are fitted simplify and accurately.
通过建立基于离心通风机性能曲线的数学模型,并应用Excel2000软件中的图表功能,简单而又十分精确地对离心通风机性能曲线进行拟合,为合理选择使用离心通风机,确定运行中工作参数,以及两种常用工况调节经济性的量化对比,提供了具有实际应用价值的一种快捷、准确的方法。
2.
The performance curves directly reflect the running status of reciprocating pump and its features;the traditional drawing method has the characteristics,a great deal of work and low efficiency.
性能曲线可直观地反映往复泵运行工况及其特性,传统的绘制方法工作量大,且效率低。
3.
Drawing performance curves with measured data is an important step of checking the quality of aircraft engines.
绘制性能曲线是检验航空发动机是否合格的重要工作步骤。
4)  Curve performance
曲线性能
5)  complete characteristics
全性能曲线
1.
Predicting complete characteristics of pumps by using BP neural network;
BP神经网络法预测水泵全性能曲线的研究
2.
The surface equations,in which relative flow angle x and specific speed n are independent values,are presented to describe pump complete characteristics in different region for various specific speed.
以可靠的实测水泵Suter全性能曲线为基础,利用矩形域正交多项式最小二乘曲面拟合数学模型和计算机仿真技术,以相对流动角x和比转速ns为自变量的分区域的曲面方程来描述任意比速水泵通用全性能曲线,从而提出了一种新的计算机仿真预测水泵全性能曲线的方
6)  pump performance curve
泵性能曲线
补充资料:泵性能曲线
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性质: 泵在一定转速下运转时扬程、功率、效率、流量等重要性能参数值以及它们间的相互关系。常用性能曲线图表示。应用泵特性曲线可由泵的一个参数,确定在同一工况下泵的其他参数的数值;性能曲线的形状也反映出泵的特性,可依据曲线形状,选用适合化工工艺所属特性的泵;还可应用泵性能曲线确定泵的工作点。流量与扬程Q-H曲线,流量与功率Q-P曲线,流量与效率Q-H曲线压差与流量P-Q曲线,压差与功率P-P曲线,压差与效率P-η曲线等。泵的性能曲线一般是由泵的性能试验得到。在泵设计时可以用计算的方法得到预期的性能曲线,但在泵制成后需通过性能试验进行验证。

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