Polybrominated biphenyl

Structure of 2,2′,4,4′,5,5′-hexabromobiphenyl

Polybrominated biphenyls (PBBs), also called brominated biphenyls or polybromobiphenyls, are a group of manufactured chemicals that consist of polyhalogenated derivatives of a biphenyl core. Their chlorine analogs are the PCBs. While once widely used commercially, PBBs are now controlled substances under the Restriction of Hazardous Substances Directive, which limits their use in electrical and electronic products sold in the EU.

单词	Polybrominated biphenyl
释义	Polybrominated biphenyl 英语百科 Polybrominated biphenyl Polybrominated biphenyls (PBBs), also called brominated biphenyls or polybromobiphenyls, are a group of manufactured chemicals that consist of polyhalogenated derivatives of a biphenyl core. Their chlorine analogs are the PCBs. While once widely used commercially, PBBs are now controlled substances under the Restriction of Hazardous Substances Directive, which limits their use in electrical and electronic products sold in the EU.
随便看	govers的意思 govert的意思 govett的意思 Govezhda的意思 Gov., gov.的意思 Gov.,gov.的意思 Gov. government的意思 govideo的意思 govier的意思 goviers的意思 Govind的意思 Govinda的意思 Govindarajan的意思 Govindas的意思 Govindgarh的意思 Govindpura的意思 Govind Singh的意思 govindsingh的意思 Govind Sāgar的意思 Go viral的意思 govmanagement的意思 GovNet的意思 go voice的意思 govorn的意思 Govorovo的意思