It is the unsolidified sediment consisting of disordered kaolinite and small amount organic matter and lignite materials.
常含少量有质或与褐煤矿层等伴生。
It is the unsolidified sediment consisting of disordered kaolinite and small amount organic matter and lignite materials.
常含少量有质或与褐煤矿层等伴生。
In this study a series of different maturation degree coals are yielded by thermally treating a lowgrade lignite, and are used as the sorbents for sorption equilibrium study of phenanthrene.
将云南先锋褐煤采用热模拟的法制得一组成熟度不同的煤,并将煤中的干酪根用于对菲的吸附研究。
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