crystal wavemeter

例句：

1. 1.The crystal wavemeter was used to measure the refractive index of the liquid.
   水晶波度计被用来测量液体的折射率。
2. 2. The crystal wavemeter was used to determine the density of the sample.
   水晶波度计被用来测定样品的密度。
3. 3.The crystal wavemeter was used to analyze the chemical composition of the sample.
   水晶波度计被用来分析样品的化学成分。