算术平均

黄牛的气-血屏障的算术平均厚度和调和平均厚度均随年龄增加而不断增厚，且相邻两个组之间差异显著（P〈0.05）。

Arithmetic mean thickness and harmonic mean thickness of blood-air barrier thickened with age increasing , and there were remarkable difference between neighboring two groups ( P0.05 ) .

主要内容有：（1）用水量预测：运用组合权系数优化理论，将BP神经网络法和移动算术平均法组合，建立组合预测模型。

The main content goes as follows : ( 1 ) The forecast of water consumption : according to the optimization theory of combination weight coefficient , the author combines BP neural network method and mobile arithmetic mean method , and makes the mixed forecast model .

为此，研究了用5种不同制备工艺得到的Ca（OH）2颗粒悬浮液和悬浮液中Ca（OH）2颗粒的算术平均粒径。

This paper studied 5 different kinds of Ca ( OH ) _2 particle suspension liquid and the Ca ( OH ) _2 particle diameter .

如平均指标中的算术平均数与调和平均数H的定义基本公式可认为是一样的。

The arithmetical average in be like average index and the definition that move peace to all count H are basic and formulary like can considering as .

对电喷车的CO和NO排放浓度做算术平均，其绝对值主要由出现频率少的高浓度值所贡献。

The arithmetical mean concentrations of CO and NO emissions of EFI cars were calculated and their absolute values were predominantly contributed by high concentrations with low frequency .

分析数字滤波对改善PID控制性能的作用，介绍了用算术平均滤波和一阶低通滤波实现的改进型PID控制的数字算法，并给出仿真的结果。

This paper introduces the digital algorithm to improve the PID control using arithmetical averaging filtering and first order low pass filtering . The result of simulation is also illustrated .

5）血气屏障厚度：算术平均（Tat）0.54±O。

5 ) thickness of air-blood barrier : arithmatic mean ( Tat ) was 0.54 ± 0.13 um ;

分析了成形制件典型表面直线边和曲线边的表面轮廓算术平均偏差Ra，根据Ra反求出最佳烧结层厚，并进一步给出了CAD模型切片厚度的选取方法。

The slice and sintering thickness are calculated according to Ra . The CAD model slice is presented , and the selecting method of slice thickness is also presented .

首先，我国IPO市场存在发行抑价与发行数量波动的现象，而发行抑价的波动主要体现在月度算术平均发行抑价这一指标上。

First , there is a fluctuation phenomenon of underpricing and IPO volume , while the volatility of underpricing is mainly reflected in the monthly arithmetic average indicator .

对于算术平均亚式期权的估值很复杂，要得到一个如Black-Scholes那样的封闭形式解就相当困难。

It is complicated to obtain an explicit solution for the price of arithmetic average Asian options using the Black-Scholes model .

论证了数理统计中估计理论（以下称经典估计）的有效性准则不成立，算术平均值x不是最优估计量；

It is demonstrated that the " validity " criterion of the theory of estimation in mathematical statistics ( named classic estimate later ) isn 't right and arithmetical average value x isn 't the best estimate .

IPO长期业绩的早期研究以算术平均的累计调整收益率为指标，发现我国新股存在着长期超额报酬。

By equal-weighted CAR , former researches on the long-run performance of Chinese IPOs have found that IPOs in Chinese stock exchanges outperform index in the three years after going public .

品种区域试验中算术平均值、BLUP和AMMI估值的精度比较

Comparison of the Predictive Accuracy of Arithmetic Means and BLUPs and AMMI Estimates in Regional Crop Trials

而在OTC（柜台交易）市场上交易的绝大部分亚式期权都是标的算术平均，研究算术平均亚式期权定价问题就变得非常有意义。

The majority of underlying asset of Asian option are arithmetic average in the OTC market . Therefore researching Asian option pricing is becoming more significant .

通过非加权算术平均聚类方法（UPGMA），绘制出这些品种之间的聚类分析图。

A DNA molecular dendrogram was established for 20 ginger cultivars based on UPGMA ( unweighed pair-group method with arithmetic mean ) .

算术平均偏差对集料表面纹理的评定是合理有效的；其他条件相同的情况下，粗集料表面纹理的Rα值越大，沥青混合料的高温稳定性、水稳定性和低温抗裂性能越好。

It was reasonable to evaluate aggregates surface texture by arithmetical mean deviation R α; when other factors were fixed , high-temperature stability , moisture stability and low-temperature anti-cracking of asphalt mixtures became better with the augment of arithmetical mean deviation R α .

对各地理种群间的遗传距离采用非加权配对算术平均法（UPGMA）进行聚类分析发现，遗传距离与种群空间分布距离呈正相关。

The cluster analysis by UPGMA indicated that there was a positive correlation between the genetic distance and geographic distance of different A.hygrophila geographic populations .

对一标准量块进行了测量，并对光功率计分辨率对测量结果的影响进行了分析，结果表明本系统在实验室现有条件下可以测量轮廓算术平均偏差Ra为0.012μm的粗糙度量块。

The feasibility is verified by the measurement of a sample block . The effect of the resolution of the optical power detector is analyzed . The arithmetic average deviation value of the profile of a gage block of 0.012 μ m is ob - tained .

讨论在这种广义求和定义下级数收敛的必要条件以及它们之间的关系，得出算术平均求和要强于Abel求和结论。

Discuss the necessary condition of the Convergence Series in these two definitions and the relationship between them . As a result , the arithmetic sum is stronger than the Abel sum .

采用UPGMA构建系统树图进行聚类分析和计算遗传距离。通过非加权算术平均聚类方法（UPGMA），绘制出这些品种之间的聚类分析图。

Unweighed pair-group method of with arithmetical averages ( UPGMA ) cluster analysis was used to construct a dendrogram and to estimate the genetic distances among the populations .

参照一篮子期权的几何平均B-S期权定价模型，给出了基于实物期权的多项土地资源储备与开发的算术平均收益的夏普比率优化目标函数。

The objective Sharpe ratio function of land development arithmetic average value portfolio is deduced based on the geometric average B-S model of the basket options in the paper .

针对冷轧钢板表面微观轮廓精度的在线测量问题，提出了测量钢板表面粗糙度的2个重要参数轮廓算术平均偏差Ra和每英寸峰值个数PPI的原理和方法。

Taking aim at measuring the precision of surface microcosmic profile of the cold-rolled steel plate , the principle and technique of measuring surface roughness parameters about the profile arithmetic average error R_a and the peaks per inch ( PPI ) were proposed .

调查了北京地区消费者对HACCP认证的认知程度、支付意愿（WTP）以及相关问题，并采用算术平均法和计量方法分别估算了消费者对奶制品的HACCP认证的WTP。

Consumers'perception degree , willingness to pay ( WTP ) and related issues of HACCP certification in Beijing was investigated in this paper . The arithmetical average and econometric methods was used to estimate the consumers'WTP for HACCP certification of milk products .

本文以具有固定敲定价格的算术平均亚式期权为研究对象，并用标准二叉树模型（CRR）为它的定价模型。

This paper has a fixed strike price of the arithmetic average Asian options as the research object , and use the standard binomial model ( CRR ) pricing model for its pricing model .

文章主要是对满足某些条件的发散级数给出两种不同的求和定义，即算术平均求和与Abel求和，它与通常数学分析中Cauchy意义下所定义的求和是有区别的。

This text is about the divergent series that is satisfied with some conditions to give two different definition of sum , that is , the Arithmetic Sum and the Abel Sum . They are different from the definition of sum , which Cauchy gives .

本文采用计算机数学模拟的方法更深入地探讨了椭圆形标志物应变分析技术（Rf/Φ去应变法、Shimamoto等提出的代数法、调和平均值法和算术平均值法）的适用条件。

In this paper the application conditions of elliptical-marker strain analysis techniques ( R_f / Φ) de-straining method , algebraic method proposed by Shimamoto et al . , harmonic mean method , and arithmetic mean method ) are thoroughly discussed by computer model method .

具有固定敲定价格的算术平均亚式期权的计算

Approximation for Pricing Arithmetic Average Asian Options with Fixed Strike Price

必须取算术平均作为和。

One should therefore take the arithmetic mean as the sum .

算术平均值与几何平均值不等式的动态规划证明

Demonstration of the Dynamic Program for Arithmetic Mean and Geometric Mean

算术平均数、几何平均数与调和平均数之间的关系

The Relation between Arithmetic Average , Geometrical Average and Harmonic Average