Tyndallometer

例句：

1. 1. The Tyndallometer was used to measure the density of air in a vacuum chamber.
   Tyndallmeter被用来测量真空室中空气的密度。
2. 2. The Tyndallometer was used to determine the concentration of pollutants in the atmosphere.
   Tyndallmeter被用来测定大气中污染物的浓度。
3. 3. The Tyndallometer was used to measure the temperature of the Earth's surface.
   Tyndallmeter被用来测量地球表面的温度。