scarce metals

英 美
  • 稀有金属
  • metals n.五金名词metal的复数形式.
  • scarce adj.缺乏的;不足的;稀少的;罕见的adv.勉强
    1. Some rare metals have radioactivity.
      某些稀有金属具有放射性。
    2. Rare metals are extracted By our factory from scrap iron and copper oBtained By recycling the oBsolete and waste.
      本厂生产的稀有金属是收旧利废,从废铜烂铁中提炼出来的。