quantity variance
英 [ˈkwɒntəti ˈveəriəns]
美 [ˈkwɑːntəti ˈveriəns]
数量差异
双语例句
- A quantity ( such as the mean or variance) that characterizes a statistical population and that can be estimated by calculations from sample data.
用来标明一个统计总体而且可以从样本数据估计出来的一个数量（如均值或方差）。 - Fixed overhead quantity variance
固定制造费用耗量差异 - The material quantity variance or material usage variance is the difference between the actual quantity of material used and the standard quantity that allowed for production multiplied by the standard price.
材料数量差异又叫材料用量差异，是材料实际数量和标准数量的差额与标准价格的乘积。 - Selection of the Sample Quantity in Estimating Population Variance
估计总体方差时样本容量的选取 - The genetic parameters of major quantity traits of white feather muscovy duck RF line were estimated with variance component of the mixed family.
采用混合家系方差组分剖分法对白羽番鸭RF系的主要经济性状遗传参数进行了估计。 - We obtain the regression equation of the changing model of patient quantity by using regression analysis and make variance analysis to carry out statistical inspection.
利用回归分析，得到了该地区病人数量变化模型的回归方程，并用方差分析进行统计检验。 - The test proved that, the seeding quantity variance coefficient of the allotter with the shunting cone is lower by 2% than that of the allotter without the shunting cone under the same work conditions.
试验结果表明：如果其它条件不变，分配器安装分流圆锥要比不安装分流圆锥时的变异系数低2%左右； - In the process of fermentation, the quantity of simple protein gradually decresed, but combined protein continuously increased. The content variance of both kinds of protein was highly interrelated.
在发酵过程中，简单蛋白质含量逐步减少，复合蛋白含量不断增加，两者的含量变化高度相关。 - After trapping system response at every sampling time, stabilizing control can be realized by increasing or reducing control quantity according to parameters tolerance and variance tendency of the time on the basis of motor system control experience and fuzzy mathematical theory.
在每个采样时刻截获系统的响应后，可根据该时刻的参数偏差及其变化趋势，依据已有的电机系统控制经验，运用模糊数学理论，通过适当加大或减小控制力度来实现稳定控制。 - Due to the decorrelation and frequency-band partition of DWT for long memory process ( LMP), a physical quantity called sub-band variance was proposed, and its approximating expression was given under the fractionally differenced ( FD) parameters or spectral density is specified.
根据长记忆过程小波变换的频带分割及其去相关性，提出了子带方差的概念，并给出了在长记忆条件下的估算公式。 - In the different aspects of biological change in quantity and quality; inheritance and variance;
本文从生物的量变与质变、遗传与变异、生物发展中否定之否定规律的作用等不同侧面。 - An analysis of the causes of fish quantity variance from changes of the fish fauna in Yunnan Dianchi Lake
从滇池鱼类区系变化论滇池鱼类数量变动及其原因 - There is few abstract researches in the fix quantity of the space variance between soil and terrain, especially in the small field.
但有关土壤与地形要素的空间定量关系还缺乏深入的研究，特别是对微域或田间尺度及单一制图单元内的土壤与地形关系定量模式知之甚少。 - Under the condition of the sample quantity was given, the optimization problem was set up which aim is to minimum the regression variance of flexibility of base frame.
在给定样本总量的条件下，建立以挠度的回归方差最小为目标的最优因素组合的优化问题。