photometric quantity

例句：

1. 1. The photometric measurements of the light spectrum are crucialfor understanding the nature of light.
   对光频谱的光电测量对于理解光的本质至关重要。
2. 2. The photometric data from the experimentwill be analyzed to determine the effectiveness ofthe new treatment.
   实验中的光电数据将被分析以确定新治疗的有效性。
3. 3. The photometric chart shows the relative intensity of differentwavelengths of light.
   光度图表显示了不同波长光的相对强度。