sword hygrometer

例句：

1. 1.The meteorologist used a sword hygrometer to measure the humidity in the area.
   气象学家使用剑式湿度计测量该地区的湿度。
2. 2. The farmer used a sword hygrometer to monitor the soil moisture levels.
   农民使用剑式湿度计监测土壤湿度水平。
3. 3. The scientist developed a new sword hygrometer that could detect even the slightest changes in humidity.
   科学家开发了一种新型剑式湿度计，可以检测到即使是最轻微的湿度变化。