单词 | zirconium |
释义 | zirconium[zə:'kəuniəm]n. 锆【化】 锆Zr【医】 锆(40号号元素) zirconium zir.co.ni.um AHD: [zûr-k½“n¶-…m] D.J. [zT86k*&ni8*m]K.K. [zP6koni*m]n.Symbol Zr (名词)符号 Zr A lustrous, grayish-white, strong, ductile metallic element obtained primarily from zircon and used chiefly in ceramic and refractory compounds, as an alloying agent, and in nuclear reactors as a highly corrosion-resistant alloy. Atomic number 40; atomic weight 91.22; melting point 1,852&9{=}C; boiling point 3,578&9{=}C; specific gravity 6.56 (20&9{=}C); valence 2, 3, 4.See table at element 锆:一种有光泽的、坚固的、可伸展的灰白色金属元素,主要从锆石中提炼。作为合金剂在陶器制造和耐火化合物中大量使用,而在核反应器中用作一种高度抗腐蚀合金。原子序数40;原子量91.22;熔点1,852&9{=}C;沸点3,578&9{=}C;比重6.56(在20&9{=}C时);化合价2,3,4参见 element |
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