英语词汇“columbite”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-新都网

WORD FAMILY

columbite

USAGE EXAMPLES

The region has a history of tin and columbite mining - abandoned mines mark the landscape.

BBC(Mar 12, 2010)

They are probably present in the form of columbite, a niobate of iron and manganese; and tantalite, a tantalate of the same metals.

Beringer, Cornelius, A Text-book of Assaying: For the Us...(2010)

n a black mineral that is an ore of niobium and tantalum

Syn|Hyper

niobite

mineral

solid homogeneous inorganic substances occurring in nature having a definite chemical composition

单词	columbite
释义	columbite (once / 176408 pages) n WORD FAMILY columbite USAGE EXAMPLES The region has a history of tin and columbite mining - abandoned mines mark the landscape. BBC(Mar 12, 2010) They are probably present in the form of columbite, a niobate of iron and manganese; and tantalite, a tantalate of the same metals. Beringer, Cornelius, A Text-book of Assaying: For the Us...(2010) n a black mineral that is an ore of niobium and tantalum Syn\|Hyper niobite mineral solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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