niobium
音標[nai'?ubi?m] 讀音漢語翻譯
n. 鈮
【化】 鈮Nb
【醫】 鈮(41號元素,舊名為鈳)
詞型變化:
簡寫符號:Nb英文解釋:
名詞 niobium:
- a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium同義詞:Nb, atomic number 41
詳細解釋:
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,主要存在於鈮鉭物中,用於鋼鐵合金、弧形焊接以及超導(電)性研究中。原子序數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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