The difference between mild heat and severe heat;
1, different times
The summer heat is around July 7 every year; It is a hot summer around July 23rd every year.
The position of the sun is different.
When the sun reaches longitude 105, it is a slight summer heat; When the sun reaches the longitude 120, it is the great summer heat.
3. Different meanings
Moral of the little summer heat: the weather began to get hot, but it was not the hottest. Moral of summer: The hottest period is coming.
4. Three differences.
Three times in summer: "When the wind is warm; Second, wait for crickets to live in space; The third waiting eagle began to crow. " It means that after the slight heat, there is no cool wind on the earth, and all the winds carry heat waves; The cricket left the field and went to the corner of the yard for the summer; The eagle moves in the cool sky because the ground temperature is too high.
The third summer: "The first rotten grass is firefly; Second, wait for the soil to moisten and cool off the heat; It will be fine when it rains. " It means that the ancients thought that fireflies were changed from rotten grass itself; Soil infiltration, humid air; There is plenty of rain, and thunderstorms are common.