Organohalogen compounds, or OHCs, include dioxins, polychlorinated biphenyls and some pesticides.

有机卤化物，或称OHC，包含戴奥辛、多及数种杀虫剂。

In this thesis, a type of biphenyl rod-like liquid crystals and two types of triphenylene discotic liquid crystals were synthesized.

本报道了一新的棒状液晶化合物和两并菲盘状液晶化合物的合成。