tech.ne.ti.um

technetium的音标和读音：
DJ音标发音： [tekˈni:ʃi:əm, -ʃəm]
KK音标发音： [tɛkˈniʃiəm, -ʃəm]

technetium的词性：
n.Symbol Tc （名词）符号 Tc

1. A silvery-gray radioactive metal, the first synthetically produced element, having 14 isotopes with masses ranging from 92 to 105 and half-lives up to 2.6×10⁶ years. It is used as a tracer and to eliminate corrosion in steel. Atomic number 43; melting point 2,200⁼C; specific gravity 11.50; valence 0, 2, 4, 5, 6, 7. See table at element
锝：一种银灰色放射性金属，是第一个人工合成的元素，有十四个原子量从92到105且半衰期高达2.6×10⁶年的同位素。用作放射追踪剂并可消除钢铁腐蚀现象。原子序数43；熔点2,200⁼C；比重11.50；原子价0, 2, 4, 5, 6, 7 参见 element

technetium的词源：

2. From Greek tekhn?tos [artificial]
源自 希腊语 tekhn?tos [人工的]

3. from teknasthai [to make by art]
源自 teknasthai [人工制造]

4. from tekhn? [art] * see technical
源自 tekhn? [人工] *参见 technical