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大量使用在塑胶,及电气绝缘体上的多氯联苯,需要几十年才会被分解。
Widely used in plastics and electrical insulation, PCBs -polychlorinated biphenyls - take decades to break down.
youdao
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大量使用在塑胶,及电气绝缘体上的多氯联苯,需要几十年才会被分解。
Widely used in plastics and electrical insulation, PCBs -polychlorinated biphenyls - take decades to break down.
youdao