能源和人类的生产、生活一直联系在一起。在历史上,人类社会已经经历了柴草、煤炭、石油三个能源时期。到了十八世纪,产业革命开导的工业大发展,煤炭代替柴草逐步成为能源的主要来源,产生力有了惊人的发展。进入本世纪五十年代,煤炭的优势地位开始动 Energy has always been linked to human production and life. Historically, human society has experienced three energy periods: firewood, coal, and petroleum. In the eighteenth century, with the industrial development enlightened by the industrial revolution, coal instead of firewood gradually became the main source of energy, and the production force has made an astonishing development. In the fifties of this century, the dominant position of coal began to move.