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Study on regression curve equation of heating circulating pump performance 采暖循环水泵的性能回归曲线方程研究
regression curve equation 回归曲线方程
According to real tested data,it builds up CVC cambering curve equation by polynomial regression. 根据实测数据,采用多项式回归方法,建立CVC辊形曲线方程,并探讨了该方程的重要实际意义。
Based on that,further analysis found regression curve is closely exponential function y=6.874e-4.604x in correlation between wood density and optimal value of interference fit. 在此基础上;进一步探讨最佳过盈配合量与木材密度的相关性;得到其回归拟合曲线近似为指数函数y=6.;874e-4
Builds the performance curve regression equations of two types of pumps with the least square method,and gains the fitted curve equations. 利用最小二乘法建立了两种型号水泵的性能曲线回归方程组,从而得到了水泵的性能曲线方程。
The height curve equation h=a 0d a1 was most accordant the pattern of height with DBH. 对树高曲线方程而言 ,h=a0 da1 最符合火炬松树高随直径变化的规律。
The impact of covariates on diagnostic test assessment can be deducted adopting the methods of ROC curve equation. 利用ROC曲线方程,可以扣除协变量对诊断试验结果评价的影响,并能够计算出在不同协变量取值下的ROC曲线下面积,提供更为丰富和可靠的信息。
The connected curve equation after spreading connected joint of taper container are derived, the new blanking method with computer is put forward. 导出了圆锥形容器接管交线在展开接管表面后的曲线方程，提出了用计算机绘制其交线，即放样下料的新方法。
With variation of shearing angles, the strength curve equation of thenardite and calcium thenardite salt rocks are deduced. 另外，由变角剪切试验结果分别获得了无水芒硝和钙质芒硝岩盐的强度曲线方程。
Based on the tooth profile curve equation of inner rotors in cycloidal pump, the formula for displacement calculation of the pump are derived. 根据摆线泵内转子的齿廓曲线方程,推导出了摆线泵的排量计算公式。
Based on production decline curve equation, through mathematical derivation, a kind of logarithmic type production decline curve equation is obtained. 在产量衰减曲线方程的基础上，通过数学推导，得到了一种对数型产量衰减曲线方程。
The section curve equation of main stirring shaft is obtained by deducting the screw profile curve formation process of the stirring kneader. 摘要用数学方法对搅拌捏合机搅拌轴螺杆外形曲线的形成过程进行了详细的推导，得出了主搅拌轴截面曲线形状公式。
The connected curve equation after spreading connected joint of taper container are derived，the new blanking method with computer is put forward. 导出了圆锥形容器接管交线在展开接管表面后的曲线方程，提出了用计算机绘制其交线，即放样下料的新方法。
A New Algorithm for Modeling Regression Curve 一种建立回归曲线模型的新算法
Based on Arps decline curve equation this paper presents the autoregressive model for analyzing the production exponential decline curve, the analysis is convenient and reliable. 本文基于Arps递减曲线方程，提出了油气田产量指数递减曲线分析的自回归模型。
A mechanics model for constant supporting spring hangers is put forward.Then from the working principle of constant hanger, the curve equation of cams is induced. 摘要建立恒力弹簧支吊架的力学模型，并根据恒力弹簧支吊架的工作机理，推导其凸轮的曲线微分方程。
The errors are less as comparing the test data with regressive curve and simulative curve from test parameters using the power function model. 用幂函数模型描述的回归曲线以及根据试验参数得到模拟曲线与试验值比较误差均较小。
One kind of beam type gas injection packing support plate used in the column is introduced. The curve equation of the developed pattern of the arciform plate is presented. 介绍了塔器内梁型气体喷射式填料支承及其拱形板展开图,并通过详细计算给出了该展开图的曲线方程。
The S-N curve equation and the fatigue cumulative damage model of metallic material and structure considering the damage and coaxing effect were detailed herein. 摘要给出了材料和结构在累积损伤的同时还具有强化作用的S-N曲线方程，并建立了程序载荷谱下产生损伤的同时还具有强化作用的疲劳累计损伤模型。
The main types and characteristics of tandem rolling are presented,and the equivalent roll crown and its curve equation of paired and non-paired tandem rolling are derived. 简介了轧辊交叉轧制的主要型式及其特点，导出了轧辊成对交叉（对称交叉）和非对称交叉轧制的等效辊型凸度与等效辊型曲线方程。