Metal - Wikipedia

文章推薦指數: 80 %
投票人數:10人

A metal (from Greek μέταλλον métallon, "mine, quarry, metal") is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable (they can be hammered into thin sheets



請為這篇文章評分?