C2 noun #133,754 最常用

A polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar

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  • (noun) A polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar

Meanings

  1. 1
    noun A polycyclic aromatic hydrocarbon containing four fused benzene rings; first isolated from coal tar

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