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单词 neodymium
释义

neodymium

/ˌniːə(ʊ)ˈdɪmɪəm /
noun [mass noun]
The chemical element of atomic number 60, a silvery-white metal of the lanthanide series. Neodymium is a component of misch metal and some other alloys, and its compounds are used in colouring glass and ceramics. (Symbol: Nd) We see cerium, lanthanum, neodymium, and so forth, which indicate we are dealing with a rare-earth mineral, and that can mean big problems....
  • They are composed of iron, boron and neodymium, one of the rarest metals on Earth and their strength range from 2000 to 3600 gauss.
  • Among the most important of these alloys are those containing iron and neodymium along with boron.

Origin

Late 19th century: from neo- 'new' + a shortened form of didymium.

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更新时间:2024/12/25 11:13:15