误差平均值

It is indicated that the arithmetic mean value can be used to substitute for that calculated with the theore tieal formula,while the required relative erroris no larger than 1

结果表明，用较简单的算术平均值代替较繁复的理论计算值，其相对误差不超过1％。

Software adopt numbers sampling and strike the average number to reduce the error of detection.

软件设计采用多次取样求取平均值的方法降低了检测误差。

The main research methods are:(1)Theory analysis:from the 2D plane geometry analysis, dots continuity characteristics are found. The first time irrational fraction algorithm is used in FM program.(2)Experiments reaearch:experiments of condition halftone function are designed under the cross-experiment principles. The first time variable information printer and C# language are used in experiment.(3)Data processing:new type digital density apparatus is used to measure data. Compare is used in processing data and error cause are explained. The main works as follows:The dot area percentage has been gained and new condition halftone function has been set up.(2)After being corrected, speed of irrational fraction algorithm has been compared with multiplicative congruence algorithm's.

本文的主要研究方法有：(1)理论分析：运用数字加网原理，从二维平面几何分析入手，借助实验验证研究网点连续特性；首次系统地把无理数取尾法随机数生成器引入到调频加网系统中，根据实验修正生成器的模型，运用统计假设检验理论，对生成的随机数序列进行统计假设检验；(2)实验研究：根据正交实验法则设计实验，首次采用可变信息印刷机(HP Laser PS印刷机)输出实验样张，克服了用传统胶印机作实验影响因素多的缺陷；采用新型数字式密度仪测量密度值，提高了数据精度；采用最新编程语言编写调频加网程序；(3)数据处理与分析：利用平均值比较法处理数据，对误差产生的原因进行讨论。

In optimum operating condition, the maximum variation of computational head compared with experimental one is 2.52%, and averaged absolute variation is 4.5%.

CFD计算的曲线与试验曲线的趋势基本一致，最优工况点计算扬程相对试验扬程的最大误差为2.52%，误差绝对值的平均值为4.5%。

You also get your sample mean, the standard deviation ( this is the estimated standard deviation ), and the estimated standard error of the mean.

你也能获得你的样本平均值，标准偏差，和平均值的估计误差。

The additional calculation error of measuring gas flow capacity through planimeter calculating av - erage value between differential pressure and static pressure with dual bellows differential pressure flow capacity table is discugsed in this paper .

本文讨论了从双波纹管差压流量卡片上，用求积仪求得差压和静压的平均值计算天然气流量方法所产生的附加计算误差；分析了差压和静压在不同的变化趋势下，附加计算误差的大小和方向；提出了改进和预防的建议。

RANDOM ERROR - the mean of a large number of measurements influenced by random error matches the true value.

随机误差－受随机分布误差影响的大量测量结果的平均值与真值的偏差。

Two critera for selecting the optimum starting point and to what extent the errors can be diminished as well as the residual errors remained are tabulated. From the above discussion a new approach for improving the accuracy of the average value of the signal is obtained.

给出了选择起始点的两种判据，给出了由此使误差减少的误差及残差的大小，并进而获得了一个改进平均值准确度的新方法。

On the basis of the RMS definition a method for measuring TRMS of distortion sinusoid or non-sinusoid is introduced in the paper.

介绍了一种基于交流信号有效值定义测量失真正弦波或非正弦波真有效值的方法，解决了平均值法在测量失真正弦波时引起显著测量误差的问题。

SYSTEMATIC ERROR - the mean of a large number of measurements influenced by systematic error deviates from the true value.

系统误差－受系统自身分布误差影响的大量测量结果的平均值与真值的偏差。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。