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單詞乎

niobium

音標(biāo)[nai'?ubi?m]
niobium是什么意思、niobium怎么讀

niobium漢語翻譯

n. 鈮
【化】 鈮Nb
【醫(yī)】 鈮(41號元素,舊名為鈳)

niobium詞型變化

簡寫符號:Nb 

niobium英語解釋

名詞 niobium:

  1. a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
    同義詞：Nb, atomic number 41

niobium詳細(xì)解釋

ni.o.bi.um

n.Symbol Nb （名詞）符號 Nb
A silvery, soft, ductile metallic element that occurs chiefly in columbite-tantalite and is used in steel alloys, arc welding, and superconductivity research. Atomic number 4; atomic weight 92.90'; melting point 2,4'8=C; boiling point 4,927=C; specific gravity 8.57; valence 2, 3, 5.See table at element
鈮：一種象銀的、柔軟的、可延展的金屬元素，主要存在于鈮鉭物中，用于鋼鐵合金、弧形焊接以及超導(dǎo)（電）性研究中。原子序數(shù)4；原子量92,90'；熔點2,4'8°C；沸點4,927°C；比重8.57；化合價2,3,5參見 element

來源：
After Niobe [so called because it is extracted from tantalite]
源自 Niobe [以此命名是因為它從鉭鐵礦中提煉出來]

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