Organohalogen compounds, or OHCs, include dioxins, polychlorinated biphenyls and some pesticides.
有机卤
，或称OHC，包含戴奥辛、多氯联苯及数种杀虫剂。
]联苯；联二苯]多氯联苯（
polychlorobiphenyl）Organohalogen compounds, or OHCs, include dioxins, polychlorinated biphenyls and some pesticides.
有机卤，或称OHC，包含戴奥辛、多氯联苯及数种杀虫剂。
In this thesis, a type of biphenyl rod-like liquid crystals and two types of triphenylene discotic liquid crystals were synthesized.
本
报道了一类新的联苯类棒状液晶
和两类苯并菲盘状液晶的成。
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