变异系数

Experimental results indicate that the variance coefficient was not bigger than 4.98% in the range of 50×10^(-6)~10000×10^(-6); the coefficient was not bigger than 0.44% and the absolute error was less than 0.35×10^(-6) in the range of 2.5×10^(-6)~10×10^(-6).

该分析方法在50×10^(-6)~10000×10^(-6)范围内，变异系数不大于0.44%；在2.5×10^(-6)~10×10^(-6)范围内，变异系数不大于4.98%，绝对误差小于0.35×10^(-6)。

The coefficient of variation of the second caulis and spread length reached 27.6% and 22.1%.

而第二主茎长度变异系数是27.6%。伸展长度变异系数22.1%。

When the concentration of CPFX added in samples were 1.5625×10^(-4)-1.25×10^(-3)g/kg, the average recovery in ELISA and HPLC were 73.81% and 80.41%; the inner group variation coefficient of ELISA and HPLC were 8.75% and 1.27% respectively.

在标准品添加量为1.5625×10^(-4)~1.25×10^(-3)g/kg时，ELISA方法的平均回收率为73.81%，批内变异系数为8.75%，HPLC方法平均回收率为80.41%，批内变异系数为1.27%。

The variation coefficient of carbon concentration was smallest for leaves, and largest for roots.

叶的碳浓度变异系数最小，而根的变异系数最大。

The operation was performed by one person to decrease operation error. Variation coefficient of each vertebral body and BMD was measured, and the smallest number of samples was evaluated.

由不同骨矿密度可得到各自的变异系数，由不同的变异系数可得到在保证研究结论可靠的前提下，课题研究所需的最少各自样本例数。

Ecological analysis of morphological and genetic variation revealed that:(1) The averages of morphological characters were significantly negatively correlated with WSF (2) Dominant frequencies of some RAPD loci were significantly correlated with WSF (3) The correlation between morphological variation and genetic variation was not significant (4) The cluster analysis based on morphological and genetic evidence supported that all population can be divided into three ecotypes: saltmarsh reed, freshwater reed and giant reed.

相关分析表明：种群内各形态特征的平均值均与水盐联合影响因子显著负相关，但种群内形态变异系数与水盐联合影响因子普遍相关不显著；种群遗传多样性指数与水盐联合影响因子相关不显著，但部分生境倾向型的RAPD位点的显性频率和来自等位酶分析的克隆多样性水平与水盐联合影响因子显著相关；形态变异系数与遗传多样性指数相关不显著，但相关系数均为正值。

The result of variance analysis and regression showed that leaf area is the most variable index, and the others share a close coefficient of variation, about half of that in leaf area.

结果表明，叶面积的变异最大，其余4项指标变异程度接近，变异系数约为叶面积变异系数的1/2。

To disease resistance, SP3 (from H1) had stronger ability to resist leaf mold. 4.The characters obtained by space mutation were easier to be stable. The results showed that, the differences of the flowering dates of 1st inflorescence, the positions of 1st inflorescence, number of leaves between 1st and 2nd inflorescences in the colony were decreased with the development of generations. Most of these heritable characters could be stable in SP3 and a few could be stable in SP4, 2~3 generations earlier than that of traditional breeding (The characters were stable in 6 generations.).

试验结果表明，植株的第一花序开花期、植株的第一花序节位、第一至第二花序间隔叶数及产量的株间变异（变幅、标准差和变异系数），随着世代的递增而降低，大部分株系的变异性状从SP3后就稳定遗传，少数株系的变异性状从SP4后才稳定遗传，比一般常规育种的6个世代开始稳定，可提早2～3个世代，经地面定向选择能较快选出综合性状优良的目标株系。

Among the four paper formation assessment methods, i.e., coefficient of variation, varience (S^2), M/K formation index, and modified all-pairs score, the COV and look-through judgements are most affected by mean light absorbance. Under similar mean light absorbance renditions, all four methods gave similar results.

吸光度变异系数、影像灰阶变异数(S^2)、M/K交织指数及目测修正成对评分法四种纸张交织评估法中，变异系数及目测法受纸样平均吸光度之影响较大，而平均吸光度相当时，四种评估法所得之结果相近。

In the two-site sandwich CLIA for TSH,two anti-TSH monoclonal antibodies were involved,one was coated on microwells and another was labeled with acridinium ester. The assay sensitivity is 0.01mlU/L. Intrassay and interassay coefficients of variation are 4.29-6.71 and 4.36-6.14%,respectively. Average recovery is 98%.

以 DMAE·NHS为发光标记物，研究建立了两种 TSH CLIA方法，均采用一步夹心免疫分析法，在第一种方法中一株抗TSH单克隆抗体包被微孔板，另一株标记DMAE·N'HS，方法的分析灵敏度为0.olmIUA，批内变异系数为 4.29巧。71％，批间变异系数为 4.36ed.14％，平均回收率为 98％，与 TSH IRMA法的相关方程为 Y－0.20＋0.92X，相关系数为 0.993，与 Ciba Co讪ng TSH CLIA测量值的相关方程为 Y—0.16＋0.92兄相关系数为 0.986。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。