columbium

1. A soft gray ductile metallic element used in alloys; occurs in niobite; formerly called columbium.
   一种灰色金属元素，软质，易延展，用于合金中，见于铌铁矿，以前称作钶。
2. Study on Optimization of Secondary Cooling Water for High-Strength Columbium Containing Shipbuilding Section
   高强度含铌船板钢二冷配水优化研究
3. DYNAMIC TRENDS The Recent Research on Columbium Electrolytic Capacitor
   铌电解电容器研究动态
4. Columbium electrolytic capacitor has the advantage of better performance and lower price than tantalum electrolytic capacitor, therefor has a bright future.
   铌电解电容器具有比铝电解电容器优越的性能，而价格比钽电解电容器便宜，在电解电容器领域颇有发展前途。
5. Pretreatment Method for the Determination of Trace Fluoride, Chloride and Sulfate in Tantalum Pentoxide and Columbium Pentoxide by Ion Chromatography
   离子色谱法测定五氧化二铌和五氧化二钽中痕量氟氯和硫酸根离子的前处理方法
6. But columbium goods have the characteristic of much-manufacture 、 long technical flow 、 hard to control production schedule 、 material overstock in production 、 chaos stock 、 great tie up of money and so on.
   钽铌制品企业生产具有产品多、工艺流程长、生产进度控制难、生产中物料积压、库存繁乱、流动资金占用大等特点。

noun

1. a former name for niobium