| 摘 要： | All weather phenomena are associated in one form or another withheat or the absence of heat or the change in heat.Therefore,the man-ner of heating the air must be considered early in the study of how theair behaves.The earth as a planet has virtually no heat of its own.There is a certain amount of internal heat,but this can be ignored entire-ly from the meteorological point of view.Also neglivity are the amountsof heat resulting from either friction or radioactivity.Practically,theeart's sole source of heat is the sun.The sun is the parent of the earh,
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