arithmetic mean

英 [ˌærɪθmetɪk ˈmiːn]

美 [ˌærɪθmetɪk ˈmiːn]

算术平均数；算术（等差）中项；均数

计算机化学

英英释义

noun

• the sum of the values of a random variable divided by the number of values
  Synonym:first momentexpectationexpected value

双语例句

• The computation of grid centroid uses weighted mean instead of arithmetic mean. Consequently, the position of grid centroid can represent the space distribution of data points indirectly. Moreover, the incremental updating of the centroid saves a lot of time and space.
  网格质心的计算采用加权平均值而非算术平均值，因此质心的位置能够间接反应网格中数据点的分布情况，质心的增量式更新为算法节约了大量的时间和空间。
• The way incomes are distributed means most live below the arithmetic mean – and further below in countries, such as the Brics, where inequality is greater.
  收入的分配方式决定了大部分人的收入低于算术平均值，而在收入分配更加不公的国家，比如金砖四国，普通人的收入与平均值的差距更大。
• A HIGH-PRECISION IMAGE PROCESSING Algorithm Based on Arithmetic Mean of Gray-value and Bilinear Interpolation
  基于灰度期望值和二值化高精度图像处理算法
• Use median and arithmetic mean filters to do removal of the pulse and random disturbances.
  采用中值和算术平均值滤波去除脉冲干扰和随机干扰。
• 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.
  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。
• Standard deviation of weighted arithmetic mean
  加权算术平均值的标准（偏）差
• Returns the harmonic mean of a data set of positive numbers: the reciprocal of the arithmetic mean of reciprocals In principle, weights should be 1/ ( s. e.) 2.
  返回一组正数的调和平均数：所有参数倒数均值的倒数原则上，权应该是标准误差平方的倒数。
• On the premise of careful phase analysis, the shallow structure and velocity distribution of layer above basement interface is obtained by applying classical methods of time section and arithmetic mean.
  在充分细致的震相分析前提下，采用经典的时间场法和算术平均法来反演，得到了天水地震区结晶基底界面以上层的浅层结构和速度分布。
• 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.
  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。
• This system can automatically calculate and display as well as print the arithmetic mean deviation of test-pieces measured.
  本系统可自动计算、显示并打印被测试件的平均算术偏差Ra数值。