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大气中的凝结物可分为:凝结在地面物体的上凝结物,如露、霜;悬浮在空间的凝结物、如雾、云;在高空形成然后下降到地面的凝结物,如雨、雹、雪.在夜晚,地面上的一些物体,如草木、石块等的温度常常降得快些;当它们的温度降到较低时,就有水汽凝结在这些物体上,成为小水珠.这种凝结物就是露.如果是温度降低到0℃以下,则水汽凝结为霜.
The condensate in the atmosphere can be divided into: condensate condensed on the ground object, such as dew, frost; condensate suspended in the space, such as fog, clouds; condensate formed in high altitude and then dropped to the ground, such as rain, ripples, Snow. At night, the temperature of some objects on the ground, such as vegetation, stones, etc., often falls faster; when their temperature drops to a low level, there is condensation of water vapor on these objects to become small drops of water. The condensate is dew. If the temperature drops below 0°C, the water vapor condenses into frost.