單原子金屬晶體晶包的 數量級是10(-10)m。化妝品裏的有機物都是大分子吧。納米技術。。。^_^
單原子金屬晶體晶包的 數量級是10(-10)m。化妝品裏的有機物都是大分子吧。納米技術。。。^_^
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