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  • 通过元素分析、核磁共振谱、红外光谱和可见吸收光谱对单体和聚合物的结构进行了鉴定。

    T heir chemical structures were identified by NMR, UV and ir spectra as well as elemental analysis.

    youdao

  • 通过元素分析、核磁共振谱、红外光谱和可见吸收光谱对单体和聚合物的结构进行了鉴定。

    T heir chemical structures were identified by NMR, UV and ir spectra as well as elemental analysis.

    youdao

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