起雾有两个条件,一个是湿度过高,一个是温度过低,两者缺一不可。原因一:在空气湿度一定的情况下,车窗温度低于窗上露水温度时,就会在车窗表面形成结露,这也就是我们经常看到的前风挡起雾现象。原因二:在车窗两侧出现一定的温差,温度低的表面水分的饱和蒸气压低于周围环境的蒸汽 Fog has two conditions, one is the humidity is too high, one is the temperature is too low, both indispensable. One reason: in the case of air humidity, the window temperature is below the dew temperature on the window, it will form condensation on the window surface, which is what we often see before the windshield fog phenomenon. Two reasons: a certain temperature difference appears on both sides of the window, the surface temperature of low temperature saturated vapor pressure is lower than the ambient steam