earth nucleus

英 美
  • 地核
  • earth n.地球;泥土;世间
  • nucleus n.核;核心;细胞核;原子核
    1. The earth has a core and a mantle around it.
      地球的中心是地核,地核的周围是地幔。
    2. The entire earth may have been melted, and the iron and silicate components separated to form the core and mantle.
      整个地球被熔化,铁和硅酸盐分离而形成地核和地幔。