查询词典 mean square deviation

In this article, the wave of cutting speed is described as the deviation of mean square and the maximum deviation of speed during the working stroke.

本文用工作行程中速度的平均平方偏差及最大速度差来描述刀具速度波动，并以此为评价函数，采用多目标优化设计方法，确定牛头刨的主传动拉杆尺寸。

NMath Stats contains a data table class with functions for computing descriptive statistics, such as mean, variance, standard deviation, percentile, median, quartiles, geometric mean, harmonic mean, RMS, kurtosis, skewness, and many more; PDF, CDF, inverse CDF, and random variable moments for a variety of probability distributions, including normal, Poisson, chi-square, gamma, beta, Student's t, F, binomial, and negative binomial; Combinatorial functions, such as factorial, log factorial, binomial coefficient, and log binomial; Multiple linear regression; Basic hypothesis tests, such as z-test, t-test, and F-test, with calculation of p-values, critical values, and confidence intervals; One-way and two-way analysis of variance and analysis of variance with repeated measures; Multivariate statistical analyses, including principal component analysis and hierarchical cluster analysis.

nmath统计包含一个数据表的阶层与职能计算描述性统计，如平均，方差，标准差，百分位，中位数， 25 ％，几何平均数，调和的意思是，有效值，峭度，偏度，还有更多的； PDF格式，民防部队，逆民防部队，并随机变量矩的各种概率分布，包括正常，泊松，卡方检定，伽玛，测试版，学生的吨，男，二项式，并负二项分布；组合的功能，例如阶乘，日志阶乘，二项式系数，并登入二项式；多元线性回归；基本假设测试，如的Z测试， t检验， F检验，计算p值，临界值，和置信区间；之一，双向和双方法方差分析和方差分析与反复的措施；多元统计分析，包括主成分分析和聚类分析。

With the evaluation, each group measuring value is considered as a single subsystem, and the minmax-difference, mean difference and the mean square value of each group are calculated. Then, the ratio of the mean difference to the measurement mean value is defined as the system-relatively error of subsystem and the ratio of the minmax difference to the measurement mean value is defined as the accidence-relatively error of the subsystem.

以每组为一个子系统，分别计算出每组的极差、平均差和标准差，然后定义平均差和测量平均值的比值为子系统的系统相对误差，定义极差和测量平均值的比值为子系统的偶然相对误差。

The article exoatiats on the reasons of hole deviation; analyses a great many of recent field application of deviation control , gains a nice bit of field experience and theory on deviation control .

本文阐述了井斜产生的原因；归纳分析了今年来国内井斜控制技术在现场应用情况；结合静力学防斜理论和动力学防斜理论，总结了大量井斜控制技术现场应用的工程经验和理论，对防斜钻井技术研究及防斜钻井实践有重要参考、指导意义。

Considering the pitch deviation, pitch accumulative deviation, flank angle deviation and their combined influence on the pitch diameter, the authors present a complete differential optimal approximate model in this paper and use the ideal thread to approximate the actual thread radially and axially.

本文建立的螺纹中径当量全微分优化逼近模型，考虑了螺距偏差、螺距累积偏差和半角偏差本身及其相互间对中径的综合影响，并用理想螺纹在径向和轴向二维逼近实际螺纹。

Based on Lissajou figures, using radius vector deviation to express figure form deviation, the relation between radius vector deviation and signal waveform parameters is analyzed.

以Lissajou图形计算法为基础，用向径偏差来表征图形形状偏差，分析了向径偏差与信号波形参数之间的关系，设计了编码器动态细分误差快速评价系统。

The author asserts that combining the whipstock with deviation drilling bits and deviation survey devices can bring about a simultaneous completion of deviationmaking with direetion-ehanging, thus can save two or three days for each deviation-making.

笔者在详述了结构原理和试验情况后指出，这种造斜器与造斜钻头、随钻测斜仪配套，可实现造斜和扭方位一次成功，每次造斜可减少起下钻2～3次，节省2～3天时间。

Consisted of investor conservatism deviation and excessive confidence deviation with the presupposition of self-attribution deviation.

给出包括投资者保守性偏差和以归因偏差为条件的过度自信偏差的一个行为金融学模型。

Under the framework of DHS model, this paper tries to build a behavioral finance model in a cross section market, consisted of investor conservatism deviation and excessive confidence deviation with the presupposition of self-attribution deviation.

本文基於DHS模型，在一个截面市场中，给出包括投资者保守性偏差和以归因偏差为条件的过度自信偏差的一个行为金融学模型。

Then we study investors\' behavour in China by using the questionnaire method from three dimensions—investor\'s knowledge,psychology and behavior and from seven affecting factors—motive,securities investment Knowledge,awareness of risk,investment philosophy,trading,investment decision-making rule and investment performance.Aiming at these investment characteristics we examines the conservative bias and the reasons for the deviation from mental deviation from the emotional,social psychology and cognitive psychology deviation and from over-confidence,loss aversion,conservatism aversion, excessive fear of selective bias,selecting aversion,gambling psychology,self-attribution,the dependence on the policy bias and rapid money-making psychology.And we analyze investors\' several restrictive conditions during investment decision-making including information and knowledge constraints,psychological constraints,funds constraints and external conditions.

本文从全球股灾的教训及近年来我国证券投资者生存现状出发，从理论和实践两个角度论述了加强投资者教育以提高我国投资者在投资过程中的自我保护能力的重要性；采用调查问卷的方法，从投资者的知识、心理、行为三个构面，从入市动机、证券投资知识、风险意识、投资理念、交易行为、投资决策依据及投资业绩等七个影响因素来考察了我国投资者的投资行为；针对这些投资者的行为特征，从情感心理偏差、社会心理偏差和认知心理偏差三个构面，从过度自信、损失厌恶、保守性偏差、过度恐惧、选择性偏差、赌博心理与自我归因、对政策的依赖性偏差以及暴富心理等影响因素出发对我国投资者的认知偏差，以及产生这些偏差的原因进行了分析，探讨了投资者在投资决策时的几个约束条件，即信息约束、知识约束、心理约束、资金约束以及外部条件约束。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。