diffusion hygrometer

例句：

1. 1. This diffusion hygrometer is used to measure the humidity in a room.
   这个扩散湿度计用来测量房间的湿度。
2. 2.The doctor prescribed a medication for her, which helped reduce her fever and swelling.
   医生给她开了一种药，帮助她减轻了发烧和肿胀。
3. 3. The diffusion hygrometer was an essential tool for monitoring the environment during the construction of the new hospital.
   扩散湿度计是监测新医院建设环境的重要工具。