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noun | noun | to phrases
polychlorobiphenyls n
earth.sc. 多氯联苯｛化｝
UN, chem. 多氯联苯
polychlorobiphenyl [ˌpɔliˌklɔːrə'bai'fenil] n
oil 多氯联苯
polychlorobiphenyls: 1 phrase in 1 subject
Water resources1

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