翻译
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  • atomic number 81

    翻译

    原子序数 81

    以上结果来自机器翻译。

  • 英英释义

    Noun

    • 1. a soft gray malleable metallic element that resembles tin but discolors on exposure to air; it is highly toxic and is used in rodent and insect poisons; occurs in zinc blende and some iron ores
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