extreme minimum relative humidity

例句：

1. 1.The air was so dry that it felt like the extreme minimum relative humidity.
   空气非常干燥，感觉就像极端最低相对湿度。
2. 2. The farmer carefully monitored the temperature and humidity to ensure the crops were in the extreme minimum relative humidity range.
   农民仔细监测温度和湿度，以确保作物处于极端最低相对湿度范围内。
3. 3. During the drought, the water level dropped to an extreme minimum relative humidity level.
   在干旱期间，水位下降到极端最低相对湿度水平。