This paper deals firstly with the distribution of pyrites in coals.
首先揭示了煤中黄铁矿的分布赋存规律。
In this paper the pyrolysis of coals with different metamorphism is performed under inert gas ambience in a non-isothermal reactor.
本试验的目的是研究不同变质程度的煤在惰性气氛中的非等温热解。
This paper sums up present research situation and advances in oil from coals in organic petrologic point of view.
并从有机岩石学观点出发，对煤成油的研究现状和进展进行了评述。
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