On April 20, 20 10, a rare "resurgence" phenomenon occurred in Jiangcheng, and the ground and walls were wet. Experts explained that this is because our city a few days ago. ...

In the "cold spring" weather, the temperature is relatively low, which will reduce the cold temperature of the ground and walls;

Warm and humid airflow will increase the content of water vapor in the air, and water vapor will liquefy into small water droplets when it meets cold ground and walls.

On April 20, 20 10, a rare "resurgence" phenomenon occurred in Jiangcheng, and the ground and walls were wet. Experts explained that this is because the city suffered from "late spring cold" weather a few days ago, and the temperature of the ground and walls was (low). However, recently, the southwest warm and humid airflow came over our city, and the water vapor content in the air was high.

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