When the solar term turns cold, hit three numbers.

Small and full, the river is getting full. May 2 1 day is the full moon in the 24 solar terms. Xiaoman is a temporary phenology, which indicates abundant precipitation and mature crops. It also contains the philosophical thoughts of ancient people in China. It was 239 when I had a slight cold, and I was shivering with cold. This shows the cold degree of the slight cold solar terms. In the slight cold season, the direct point of the sun is still in the southern hemisphere, and the heat in the northern hemisphere is still in a state of loss. The heat absorbed during the day is still less than the heat released at night, so the temperature in the northern hemisphere continues to decrease. December is another name for the end of December. As for "wax", as early as Zhou Li and other works, there are records of "meat fu" and "wax taste", and the original meaning of "wax" is "dry meat". The end of December has many names, the most familiar of which is the nickname "twelfth month" This month's weather is most suitable for air-drying bacon, so it is called "twelfth lunar month".