Heterocyclic aromatic hydrocarbons是什么意思

用法例句

There is many kinds of medical wastewater with complicated organic composition such as Heterocyclic aromatic which is difficult to be degraded.

高盐医药废水种类很多,并且成分复杂,某些废水含有许多难以降解的杂环芳烃等有机物。

Ring-opening reactions of oxabicyclic alkenes;

氧杂双环烯烃开环反应的研究及其应用