photometric paper

例句：

1. 1.This photometric paper is used to measure the brightness of light.
   这种光度计纸用来测量光线的亮度。
2. 2. The scientist used this photometric paper to make a precise measurement.
   科学家使用这种光度计纸进行了精确的测量。
3. 3. The photometric paper was used to record the data from the experiment.
   光度计纸被用来记录实验的数据。