“碳元素”在地球高温时受热升空,地球降温时以“黑雪”形式回降低洼处,深埋湖底形成“积碳”。在深层高温高压下,碳、水分子重新组合,形成石油,浅层相对低温低压下,形成煤。(这个是摘要) The carbon element is heated and lifted when the earth is in high temperature. When the earth is cooled down, it returns to the low depression in the form of “black snow” and forms a “carbon deposit” in the deep lake. Under deep high temperature and high pressure, carbon and water molecules recombine to form petroleum, which forms coal under relatively low temperature and low pressure in the shallow layer. (This is a summary)