columbite

columbite读音音标

英[kə\\\'lʌmbaɪt]

美[kə\\\'lʌmbaɪt]

基本意思释义

n.钶铁矿

短语及实用例句

There is high tantalite grade for certain large scale granite - pegmatite pattern tantalite - columbite mine in our country.

我国某大型花岗伟晶岩型铌钽矿含钽品位高居我国钽铌矿山之首.

The measurement indicates that the optimized performance can be achieved by three - element composite columbite precursor methods.

性能测试结果表明,三组元复合先驱体法制成样品的性能*佳.

英英释义

Noun

1. a black mineral that is an ore of niobium and tantalum