1) CV(coefficiep of vairiation)
差差系数
2) gradation coefficient
级差系数
3) Deviation factor
偏差系数
1.
With a drop in formation pressure, the parameters which closely related to the flow coefficient of the exponential deliverability equation are varied, such as gas deviation factor, gas viscosity, reservoir permeability, effective thickness and so on.
随着地层压力的下降,与指数式产能方程流动系数密切相关的参数,如天然气偏差系数、天然气粘度、气层渗透率、有效厚度等都是变化的。
2.
On the basis of analysis of the raw materials,using the fineness modulus of aggregate mixture,the deviation factor of synthetic gradation and objective gradation as technical indexes,the best aggregate ratio is attained through the application of computer operations.
在骨料原材料分析的基础上,以合成级配与目标级配的偏差系数、骨料混合料的细度模数作为技术指标,通过计算机应用程序的运算,获得定量化的骨料最佳级配。
4) variation coefficient
变差系数
1.
The optimum design example shows that the variation coefficient of load torque acting on cutting head is decreased 13.
优化设计实例表明,截割头的负载转矩变差系数减小了13。
2.
The Analysis shows that the bigger the variation coefficient of dependent variable,the bigger the mean square error of regression equation when the multiple correlation coefficient(or correlation coefficient) is definite.
分析表明,复相关系数(或相关系数)一定时,倚变量的变差系数越大,回归方程的均方误差就越大;回归分析时,应对回归方程的误差进行分析。
3.
Mathematical expectation,variation coefficient and probability density function were analyzed or simulated to investigate the variation trend and characteristics of daily precipitation in the area.
利用重庆地区4个气象台站(沙坪坝、开县、万州、酉阳)1961～2000年的40 a观测资料,通过计算、拟合日降水的数学期望、变差系数及分布函数,对重庆地区日降水变化趋势及变化特征进行分析,从而进一步了解重庆气候变化情况。
5) Difference coefficient
差异系数
1.
The analytical results should be modified by a difference coefficient when the uneven character analysis is based on all the arriving ships.
若采用全部船舶到船资料分析到船不均衡性时,需用差异系数对分析结果进行修正。
2.
Based on the technology of multivariate statistical analysis,taking the principal component as the information of stock market;the difference coefficient of principal component as the portfolio selection index are put forward.
本文充分利用多元统计分析的技术,提出了用主成分综合反映证券市场的信息;用主成分的差异系数作为投资组合的指标;得到了一个新的投资组合模型,并给出了具体的投资策略———卖空与非卖空条件下的投资组合的比例。
6) coefficient of variation
变差系数
1.
Through the histogram method and Kolmogorov test,it was obtained that the sensitivity coefficient of variation for D6-2 artillery primer and mechanical explosive devices approximated the normal distribution of(0.
变差系数是进行火工品可靠性设计的重要参数之一。
2.
The results show that the rainfall isogram in the area of Beijing has been densified by the urbanization, and then the annual rainfall has been increased as well; which makes the change of the coefficient of variation of urban rainfall is larger than those of the suburbs.
分析表明,城市化使北京地区降雨量等值线加密、年雨量增加,使城区雨量变差系数变化大于郊区。
3.
Based on the date of Chaohu river network of waterways area 8 survey station of many year materials,The relations between,its flood peak and the year of the largest flood runoff one day is established,its corresponding coefficient of variation Cv value is calculated and the distribution rule and origin of the Cv value is analyzed.
通过对巢湖水系河网区8个测站多年资料,建立其洪峰与年最大一日洪量关系,计算其对应变差系数Cv值。
补充资料：差差
1.犹参差。不齐貌。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条