The long half-lives of PCDDs, PCDFs and “dioxin-like” PCBs mean that each daily ingestion has a small or even a negligible effect on overall intake.
PCDF和“类二恶英”PCB的半衰期很长，意味着每天的摄入对总摄入量的影响很小甚至可忽略不计。
We live, environmentalists warn, in a world laced with dangerous chemicals, from powerful pesticides to toxic industrial wastes like dioxin and PCBs.
环保人士警告说，我们居住的是个布有各种危险化学物质的世界，从强效杀虫剂到戴奥辛、聚氯联苯等有毒工业废物都有。
12 kinds of dioxin-like polychlorinated biphenyls(PCBs)in soil were determined by accelerated solvent extraction(ASE)and gas chromatography method.
采用加速溶剂萃取（ASE）—气相色谱法测定土壤中的12种类二恶英多氯联苯。
12 kinds of dioxin-like polychlorinated biphenyls(PCBs)in soil were determined by accelerated solvent extraction(ASE)and gas chromatography method.
采用加速溶剂萃取（ASE）—气相色谱法测定土壤中的12种类二恶英多氯联苯。
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