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单词 bornite
释义

WordReference Random House Unabridged Dictionary of American English © 2024
born•ite  (bôrnīt),USA pronunciation n. 
  1. Mineralogya common mineral and important ore of copper, copper iron sulfide, Cu5FeS4, occurring in masses, of brownish color when first exposed to the air; peacock ore.
  • 1850–55; named after I. von Born (1742–91), Austrian mineralogist; see -ite1
bor•nit•ic  (bôr nitik),USA pronunciation adj. 
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更新时间:2024/11/10 23:47:23