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1 引言 1888年俄国化学家门捷列夫设想：“随着时间的推移，这样的时代可能要实现，即煤不从地下开采出来，而是在地下直接转化为可燃气体，……。”1979年联合国召开世界煤炭远景会议提出：“发展煤炭地下气化是世界煤炭开采的研究方向。”1992年制定的我国科学技术中长期发展
1 INTRODUCTION The Russian chemist Mendeleev envisaged in 1888: “Over time, such an era may be realized, in which coal is not mined underground but directly converted into combustible gas underground ....” The United Nations Conference on the World Coal Prospects put forward: “The development of underground coal gasification is the world’s coal mining research direction.” China’s science and technology in 1992 formulated in the long-term development