polychlorinated biphenyl
simple past tense and past participle of astart
A member of a people native to the Northwest Territories of Canada.
Third-person singular simple present indicative form of disroof
(organic chemistry) Any of a class of aromatic organic compounds formed by the chlorination of the hydrocarbon biphenyl; they have many industrial applications but are now considered persistent organic pollutants.
検査官が貯蔵タンク周辺の土壌からポリ塩化ビフェニルの残留物を発見したため、その工場は罰金を科されました。
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