pcb怎么读

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pcb英语什么意思：短语和例子 PCB ＝ 1.polychlorinated biphenyls 【化学】聚[多]氯联苯〔系一种极有害的污染物〕。 2.petty ...
pcb法语什么意思：专业辞典 n.m. 【化学】多氯联苯[polychlorobiphényle的缩写]