opticaldensity-of-oxalate-extract value

例句：

1. 1. Theresearchers found that the optical density of the sample was significantly different from the control group.
   研究人员发现样本的光学密度与对照组有显著差异。
2. 2. The study aims to determine the optical density of oxalate extracts in various samples.
   该研究旨在确定不同样品中草酸提取物的光学密度。
3. 3.The results of this experiment will provide valuable information for the optimization of the extraction process.
   本实验的结果将为优化提取过程提供有价值的信息。