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.

将云南先锋褐煤采的实验方法制得一组成熟度不同的煤,并将煤中的干酪根于对菲的吸附研究。

The ubiquity of phenanthrene series, chrysene series compounds, perylene and retene compounds in the sediment indicated that PAHs mainly came from the terrestrial plants.

样品中检测到角鲨烯，表明这一地区物甲烷合成和细菌作，具有成油气及天然气水合物可能性。