niobium
名词 n.
发音 nīō'bēəm
英文释义
名词 n.
-
A chemical element (symbol Nb) with an atomic number of 41: a light grey, crystalline, ductile transition metal used in superconducting materials.
— One should use hypoallergenic jewelry made of surgical grade stainless steel, titanium, 14- or 18-karat gold, or niobium, especially for initial piercings.
- A single atom of this element.
词形变化
词汇关系
词源
From Niobe + -ium, because of the element's affinity with tantalum, named after Niobe's father Tantalus.
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数据来源: Wiktionary