gd.

英 美
  • abbr.=good;guard
  • acid n.酸;酸性物质;迷幻药adj.酸的;酸性的;尖酸的
  • gadolinium n.[化]钆(第64号元素;符号Gd)
名词 gd:
  1. a nerve agent easily absorbed into the body; a lethal cholinesterase inhibitor that is highly toxic when inhaled

  2. a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group