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和细菌作用，具有生油气及然气水物可能性。

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.

将云南先采用热模拟的实验方法制得一组熟度不同的,并将中的干酪根用于对菲的吸附研究。