极差,Range
1)Range[英][re?nd?][美][rend?]极差
1.Conditional Autoregressive Range Model And Estimation of Volatilities;条件自回归极差模型与波动率估计
2.Median and Range Charts with Variable Parameters;可变参数的中位值和极差控制图
3.Mean and Range Variable Sampling lnterval Control Charts with Sampling at Fixed Times;在固定时间抽样的可变抽样区间的平均值和极差控制图
英文短句/例句

1.Quality extremely fiery buyers refuse taking delivery质量极差,买主拒收货物。
2.He is a man of little observation.他是个观察力极差的人。
3.His spelling is terrible.他的拼字功底极差.
4.His grammar is shocking.他的文句糟极了,他的文理极差
5.The Study of Measurement Relationship between Range,Average Deviation and Standard Deviation;极差、平均差和标准差之间测度关系研究
6.From "Negative Differentiation" to "Positive Differentiation"--Compulsory Education Resource Allocation Policy in innovative Logic;从“消极差别化”到“积极差别化”——义务教育资源配置政策的创新逻辑
7.limit deviation of root circle diameter齿根圆直径极限偏差
8.MVUM (Minimum Variance Unbiased Estimator)极小方差无偏估计器
9.and the existence of underwater features of considerable magnitude.水下特征差异极大。
10."There's a huge difference."两者有着极大的差异。”
11.measures the potential difference between two points.测量两极势差的仪器。
12.Limit deviations of angle without tolerance indicationGB/T11335-1989未注公差角度的极限偏差
13.polaris happens to lie almost directly over the North Pole北极星恰巧差不多位于北极的正上方。
14.Errors of Electrode Area and Electrode Assemble in Small ESG小型静电陀螺仪电极面积及电极装配误差研究
15.Portfolio Model Based on Minimax Value-Deviations;极大极小价值离差的资产选择模型研究
16.The Minimax Invariant Quadratie Unbiased Estimation of Variance Componet方差分量的极小极大不变二次无偏估计
17.The meal was excellent except for the first course.这顿饭好极了, 只是第一道菜稍差.
18.There 's only a marginal difference between the two estimate .这两项估计,只有极小的差异。
相关短句/例句

extreme difference极差
1.In this paper,the problem of venture decision of different investment schemes in one property or project item is discussed and the investment venture decision based on the entropy value of information theory,which was described in reference[1],is perfected with the main indexes(variation coefficient,extreme difference)to judge the venture and analyzed with an example.针对同一资产或项目的不同投资方案的风险决策问题 ,采用衡量风险的主要指标(变异系数 ,极差 )对文献 [1 ]中基于信息论中熵值的投资风险决策进行了改进和完善 ,并结合实例应用进行了分析。
2.According to the indices of mean reaction time,extreme difference of view-angle was the lowest and view-distance the highest.就平均反应时间而言,因素"观察角度"的极差值最小,因素"观察距离"的极差值最大。
3)rangeless electrode无极差电极
1.For reliable electric parameters and least measurement errors,the primary potential difference must not be less than 300 mV,to use rangeless electrodes as potential electrodes for amplification of I p measuring signals.为得到可靠的电性参数,减小测量误差,应保证一次电位差不于小300mV,并采用无极差电极作测量电极,以增大Ip测量信号。
4)range analysis极差分析
1.Methods of Range Analysis in Orthogonal Experimental Design of Mixed Levels;混合位级正交试验设计的极差分析方法
2.The technology conditions influencing H2 yield are discussed comprehensively by range analysis and variance analysis.在自行开发设计的硼氢化钠水解制氢实验装置上,采用单因素及正交实验研究,对反应的影响因素进行探讨,并运用极差分析和方差分析的方法综合讨论影响氢产率的工艺条件。
3.The data from orthogonal experiment were treated with range analysis, variance analysis, correlation analysis and regression analysis by SAS 8.为了系统研究凝固型酸乳的原料配方、生产工艺参数与其产品6种质量性状之间的关系,文中设计了7因素、6水平和3水平、6指标混合正交试验[L18(61×36)],对所得结果运用SAS分析软件进行了极差分析、方差分析、相关分析和回归分析,进而利用中间分析结果对影响产品感官质量的最主要因子进行了极差追踪分析。
5)sample limit error样本极差
1.R is the sample limit error (Xmax-Xmin)and n is the sample size.R是样本极差(X_(max)-X_(min)),n是样本大小(容量)。
6)concentration polarization浓差极化
1.Methods and strategies of study on concentration polarization and Membrane fouling;研究浓差极化和膜污染过程的方法与策略
2.How to evaluate concentration polarization in the process of liquid membrane separation;液体分离膜过程中的浓差极化及其评价方法
3.Effect of membrane thickness and flow rate on concentration polarization in pervaporation;膜厚度和流动状况对渗透蒸发过程的浓差极化影响
延伸阅读

极差分子式:CAS号:性质:是一组测量值中最大值与最小值之差,以及表示,R=xmax-xmin。极差只指明了测定值的最大离散范围,而未能利用全部测量值的信息,不能细致地反映测量值彼此相符合的程度,极差是总体标准偏差的有偏估计值,当乘以校正系数之后,可以作为总体标准偏差的无偏估计值,它的优点是计算简单,故在数据统计处理中仍有着相当广泛的应用。