Tantalum

(noun.) a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite.

录入:斯科特

• During the last four or five years lamps with filaments made from tantalum and tungsten have been produced and placed on the market with great success, and are now largely used. 弗兰克·刘易斯·戴尔. 爱迪生的生平和发明.

格特鲁德编辑