tantalum

名词 tantalum:

1. a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
   同义词：Ta, atomic number 73

1. A coarse-grained granite, sometimes rich in rare elements such as uranium, tungsten, and tantalum.
   花岗伟晶岩一种有时富含铀、钨和钽等稀有元素的粗纹理花岗岩