铜元素是人体所需的微量元素之一它在人体内含量偏高或偏低都不利于健康.但长期不用的铜炊具在潮湿的空气中能生成有毒的铜绿化学式为cu2oh Template




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tomski铜元素是人体所需的微量元素之一它在人体内含量偏高或偏低都不利于健康.但长期不用的铜炊具在潮湿的空气中能生成有毒的铜绿化学式为cu2oh coloring