清华大学庄前鼎教授在地质学报第36卷第1期所发表的“煤的新分类法及成分与特性图解研究”及在机械工程学报第4卷第1期所发表的“中国煤新图解分类法”两篇论文,就其内容与目的来讲,作者曾搜集国内外部分的煤质资料,进行整理,并对名种煤的化学分析(工业分析与元素分析)数据间的关系,反复推敲,得出了对中国煤的新图解分类方 Professor Zhuangqian Ding of Tsinghua University in the Journal of Geology, Vol. 36, No. 1, “New classification of coal and its composition and characteristics of the graphic study” and in Mechanical Engineering, Volume 4, No. 1 published “new Chinese coal diagram Classification ”two papers, in terms of its content and purpose, the author has collected some of the domestic and foreign coal quality information, sorting, and chemical analysis of the name of the coal (industrial analysis and elemental analysis) data between the repeated Scrutiny, come to the new graphic classification of China’s coal