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1. Light densitometry is a technique used to measure the amount of light absorbed by a sample.
光密度测定是一种用于测量样品吸收光量的技术。
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2. In this study, we used light densitometry to analyze the effects of different lighting conditions on plant growth.
在这项研究中，我们使用光密度测定法来分析不同的照明条件对植物生长的影响。
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3. The results of the light densitometry test showed that the concentration of pollutants inthe water was significantly reduced.
光密度测定试验的结果显示，水中污染物的浓度显著降低。