一下霜·降霜·结霜在从晚秋到次年初春的这个期间中,清早起来,在庭院或田野里常常见到簷瓦,草叶或地面上带着一层白色的细小冰晶,这时候我们很快的就会想到这是昨天夜间“下过霜”了。在我们的二十四节气中也有“霜降”这一个节气,可见霜是一个寒冷季节极为常见(尤其是在黄河流域以北)的现象,也是人们都熟悉的东西。但是从“下霜”和“霜降”这两个词语看来,把霜认为也和雨雪一样是由空中降下来的,那是绝对不正确的。霜并不是像雨雪那样先在空中凝结而后降到地面来的,却是直接在地面及地面上的物体如簷瓦、草叶、树枝上凝结生成的。 Frost, Frost, and Frost In the period from late autumn to early spring, we get up early in the morning and we often see a small layer of white ice crystals in the courtyard or in the fields. Soon it will be thought that this was “under frost” yesterday night. In our twenty-four solar terms, there is also a “frost”, a solar term. It can be seen that frost is a common phenomenon in the cold season (especially in the north of the Yellow River Basin) and is also familiar to people. But from the two words “under the frost” and “frost,” it is absolutely incorrect to think that frost is also descended from the sky like rain and snow. Frost does not condense in the air like rain and snow and then falls to the ground. Instead, it directly accumulates on the ground and objects on the ground such as shingles, blades of grass and branches.