ni.o.bi.um
niobium的音标和读音:
DJ音标发音: [naiˈoubi:əm]
KK音标发音: [naɪˈobiəm]
niobium的词性:
n.Symbol Nb (名词)符号 Nb
1. 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 41; atomic weight 92.906; melting point 2,468=C; boiling point 4,927=C; specific gravity 8.57; valence 2, 3, 5.See table at element
铌:一种象银的、柔软的、可延展的金属元素,主要存在于铌钽物中,用于钢铁合金、弧形焊接以及超导(电)性研究中。原子序数41;原子量92,906;熔点2,468°C;沸点4,927°C;比重8.57;化合价2,3,5参见 element
niobium的词源:
2. After Niobe [so called because it is extracted from tantalite]
源自 Niobe [以此命名是因为它从钽铁矿中提炼出来]