单词columbite
n.: 【矿】铌铁矿
网络: 钶铁矿；钶铁石；钶铁矿结构
【矿物】铌铁矿
The business: Coltan -- short for columbite-tantalite -- is an ore that takes on heat-resistant properties when it gets refined.
商业：Coltan（钶钽铁矿，columbite-tantalite的缩写）是一种在经过提炼后能获得耐热性的铁矿。
at one time, Nigeria was the world"s largest exporter of columbite .
尼一度曾是世界上最大的钶铁矿出口国。
On the basis of detailed studies on columbite from the Suzhou granite, tantalite has been found for the first time in this granite.
本文在研究苏州花岗岩中铌铁矿的基础上，首次在该地区发现了钽铁矿。
Study of Intensive Decomposition Technique of Titanium-columbite-tantalite Ore
钛钽铌矿强化分解工艺的研究