包装纸材质:能被磁吸引的金属是不是全在Ⅷ副族?
来源:百度文库 编辑:杭州交通信息网 时间:2024/05/30 12:50:52
it's not s phenomenon of yes or no, but one changing with the amount.
the arrangement in every metal is somehow attractive to magleve,whether or not depends on the degree