hygroline

例句：

1. 1. This hygrometer can measure the humidity in a room accurately.
   这个湿度计可以准确地测量房间的湿度。
2. 2.The farmer used a hygrometer to monitor the soil moisture levels.
   农民使用湿度计来监测土壤湿度水平。
3. 3.The weather forecaster recommended using a hygrometer to check the air quality.
   天气预报员建议使用湿度计来检查空气质量。