certified performance curve

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。

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。

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。

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

Digitization and Conversion of Pump Performance Curve;

水泵综合性能曲线的数字化及还原

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。

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

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。

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。

non-dimensional characteristic curve of pump

水泵相对（无因次）性能曲线

synthetic characteristics(collection of characteristic curves)of pumps

水泵综合性能曲线图（型谱）

Automatic Drawing of Pump Characteristic Curve by VB;

利用VB实现水泵性能曲线的自动绘制

Using Excel Function to Fit Centrifugal Pump Performance Curve

采用Excel函数拟合离心泵性能曲线

Performance curves specially designed for high delivery rates at the low installed power rating.

注重设计低动力运转高输送的性能曲线！

" Basic types, sizes, parameters and characteristics of fans"

GB/T3235-1982通风机基本型式、尺寸、参数及性能曲线

Among the properties which do not show a leveling-off are the viscosities of solutions and melts.

溶液和熔体的粘度等性能曲线并不呈现平坦。

characteristic curve of pump

水泵性能（特性）曲线

pliable linear system of curves

曲线可弯曲线性系统

Exact Observability for Second Order Quasilinear Hyperbolic Equations

二阶拟线性双曲型方程的精确能观性

Principal Linear Optimization of Nonlinear Surface s Carrying Capacity in Shell-Containers;

薄壁容器中非线性曲面承载能力的最优线性化

SIMULATION ANALYSIS OF THE HIGH-SPEED POWER CAR RUNNING QUALITY ON CURVE

高速动力车曲线走行性能的模拟分析

Study of Stress Properties of Curved Cable-Stayed Bridge with a Single Pylon and a Single Cable Plan

独塔单索面曲线斜拉桥力学性能研究

Comparative Analysis on the Linetype Mechanical Performances of Two Railway Transition Curves

2种铁路缓和曲线线型力学性能对比分析

elasticities of IS and LM curves

ＩＳ－ＬＭ曲线的弹性

Experimental Data Processed by Linear Regress and Nonlinear Curve Regress Using Software of Origin;

用Origin软件的线性拟合和非线性曲线拟合功能处理实验数据

Capacity-Demand Curves Method for Performance/Displacement-based Seismic Design

基于性能/位移的能力-需求曲线设计方法

Exact Controllability for Nonautonomous Quailinear Hyperbolic Systems;

非自治拟线性双曲型方程组的精确能控性