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煤岩學由一般研究進展到現在的测定煤田沉積類因及頂測煤質等問題,還是最近才發展起来的,因此,在研究的方法上比其他科學要落後得多,在研究的方法上煤岩成分的定量是相當重要的手段之一。秦廣忱同志的(?)煤岩成分的定量
Coal geology has been developed from the general research progress to the present problems of determining the sedimentary type of coal field and the top coal quality. Therefore, it has lagged far behind other scientific methods in the research methods Quantitative coal and rock composition is one of the most important means. Comrade Qin Guangchen (?) Coal and rock composition of the quantitative