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聪明的人类已经发现,仅靠挖煤进行火力发电,靠江河进行水力发电,是远远不能满足人类日益增长的能源需求的。于是人类想到了头
Clever human beings have found that coal-fired thermal power alone and hydropower by rivers are far from meeting the growing energy needs of mankind. So humans think of the head