• Hole - Similar to a positive charge, this is caused by the absence of a valence electron.

    空穴-正电荷类似缺少价电子引起

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  • Natural sand adsorbed viruses increasing with the presence of metal cations, their contents and valence, but this positive role was not clear to modified sand adsorption viruses.

    金属阳离子可促进天然吸附病毒,并随浓度价态增加而增加,修饰作用明显

    youdao

  • Natural sand adsorbed viruses increasing with the presence of metal cations, their contents and valence, but this positive role was not clear to modified sand adsorption viruses.

    金属阳离子可促进天然吸附病毒,并随浓度价态增加而增加,修饰作用明显

    youdao

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