metalloid的例句（metalloid在句子中的用法）

• Metalloid mine product already became our country's important exit to achieve collect goods. 非金属矿产品已成为我国重要的出口创汇商品.
• Arsenic is a metalloid element. 砷是一种金属元素.
• Polonium is a highly radioactive element and a metalloid. 钋是高放射性的元素,金属.