calci- um

英 美
  • 钙离子
  • Calci n.卡尔奇(在意大利;东经10º31'北纬43º44')
  • um int.嗯
名词 calcium:
  1. a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals