... 偏差方差 error variance;error mean square 方差比 f ratio;variance ratio 方差区分清楚 variance partitioning ...
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F-ratio 焦比
maximum F-ratio 最大F比
F ratio F 比率
modified F ratio 改良F波比率 ; 波比率
Two-level F-ratio 二阶F比
f-ratio f 变方比
high f ratio oligo-peptide 高f值寡肽
high f ratio 高f值
relief f ratio 硫高宽比
Only some parameters such as theoretical A/F ratio and modified coefficients of sub models needed to modify little, when simulating the characteristics of engine using different gas.
当燃用不同的燃气时，只需对其中的一些参量（如理论空燃比等）及子模型的修正系数进行微调即可。
CONCLUSIONS: Characteristics that distinguish elderly from younger HCC patients include lower M/F ratio, worse performance status, lower rate of HCV infection, and less advanced underlying cirrhosis.
结论： 年长组区别于年轻组HCC患者的特征包括较低的M/F比率、更差的体力状态、较低的HCV感染率以及较少进展的肝硬化。
For example, the focal length of an 8" (203.2mm) aperture with a focal ratio of f/10 would be 203.2 x 10 = 2032mm.
比如，孔径为8英寸(203.2mm)，焦比为f/10的透镜，其焦距为203.2 x 10 = 2032mm。
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