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

在样品中检测到角鲨烯，表明这一地区存在生物甲烷合成和细，具有生成油气及然气水合物可能。

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.

南先锋褐煤采热模拟的实验方法制得一组成熟度不同的煤,并煤中的干酪根于对菲的吸附研究。