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单词 apatite
释义

apatite /apˈə-tīt/

noun

A mineral consisting of calcium phosphate and fluoride (or chloride, hydroxyl or carbonate ions), a major constituent of the bones and teeth of vertebrates, and of sedimentary phosphate rocks

ORIGIN: Gr apatē deceit, from its having been confused with other minerals
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更新时间:2024/12/23 23:50:38