What are the four solar terms that spring rain and spring earthquake refer to?

Spring rain startled spring refers to the four solar terms of beginning of spring, rain, fright and vernal equinox. Solar terms are special festivals that express the natural rhythm changes and establish "December" (month order) in the calendar. Beginning of spring is the first of the 24 solar terms. Standing means "start". Spring represents warmth and growth. When the sun reaches the longitude of 3 15, it is called beginning of spring, and it is celebrated on February 3-5 of the Gregorian calendar every year.

Rainfall indicates the beginning of precipitation, and the rainfall gradually increases. Generally, from February 18 or 19, the sun reaches 330. When you enter the rainy season, you should be prepared for spring sowing.

Sting marks the beginning of the mid-spring season, and it is called sting when the sun reaches 345 on March 5 or 6 every year.

The vernal equinox is an important season for agriculture. The sun shines directly on the equator of the earth, and day and night are almost equal. The sun reaches 0 degrees of the yellow meridian, and a festival is held on March 19-22 of the Gregorian calendar every year.