A soft, ductile, steel-white, tarnish-resistant, metallic element occurring naturally with platinum, especially in gold, nickel, and copper ores.

  • 钯一种柔软的,易拉长的,银白色的,保持光泽的金属性元素,常与铂共生,尤其在金、镍和铜矿中存在。
目录 查词历史