1, the sand sea is unfathomable with ice, and the clouds are gloomy and Wan Li is condensed. Tang Du Fu's Singing 500 Words from Beijing to Fengxian
It's cold and blue, and the north wind is called withered mulberry. Ode to Bitterness and Cold by Tang Meng Jiao
3. Meng Dong is cold and the north wind is sad. Han's Ancient Poem Meng Donghan
The formation of snow is the direct change of gas into solid, that is, sublimation. If gas passes through a liquid and becomes solid, it will form hail, not snow. If it becomes a liquid instead of a solid, it is rain.
Snow: solid water falling from mixed clouds to the ground in the form of snowflakes. Precipitation consisting of a large number of white opaque ice crystals (snow crystals) and their polymers (snow masses).
Snow is a natural phenomenon that water falls after condensation in the air, or refers to falling snow; Snow is the solid form of water. Snowfall only occurs under the influence of very cold temperatures and extratropical cyclones, so the probability of snowfall in subtropical and tropical areas is relatively small.