logarithmic mean radius

例句：

1. 1. The logarithmic mean radius is calculated using the formula: log(radius) = log(radius) + log(radius).
   对数平均半径的计算公式为：log(radius) = log(radius) + log(radius)。
2. 2. In this study, we found that the logarithmic mean radius of the sample group was significantly lower than that of the control group.
   在这项研究中，我们发现样本组的对数平均半径显著低于对照组。
3. 3. The logarithmic mean radius is an important factor in determining the stability of a material.
   对数平均半径是决定材料稳定性的一个重要因素。