条件变异系数经常被用于理解统计数据的局部变异程度。
Conditional Coefficient of Variation has been often used in understanding the local variability of statistical data.
通过正交试验分析获得较优的萃取条件,并对锌元素作添加回收试验,得回收率为96.24%,变异系数为0.64%;
Betterextract condition is obtained with orthogonal test, and the zinc element is put to the ad-dition and recovery test. The method give recoveries of 96.24%, variation coefficient of0.64%.
相同条件下多次采集的数据变异系数<4%,说明该系统操作具有可重复性;检测结果最大相对误差为4.4%,满足微量组分检测的准确度要求。
Using this system, the chroma values of ten samples can be obtained once and the variable coefficients are lower than 4% and the maximum of relative errors is 4.4%.
试验表明,在相同纺丝条件下,涤纶三叶异丝的断裂强伸度和初始模量随丝条异形度的提高而降低,而断裂强伸度变异系数、沸水收缩率和条干不匀率却随之增大。
The test has shown that as the degree of profile increases, the initial modulus and the breaking strength and elongation of profile yarn decreases. We have also quined the findi...
试验表明,在相同纺丝条件下,涤纶三叶异丝的断裂强伸度和初始模量随丝条异形度的提高而降低,而断裂强伸度变异系数、沸水收缩率和条干不匀率却随之增大。
The test has shown that as the degree of profile increases, the initial modulus and the breaking strength and elongation of profile yarn decreases. We have also quined the findi...
应用推荐