| 单词 | 示踪 |
| 释义 | 〔Hevesy〕Hungarian chemist. He won a 1943 Nobel Prize for developing the use of isotopes as tracers to investigate chemical processes.赫维西，格奥尔格·冯：(1885-1966) 匈牙利化学家。他因发展了关于同位素用作调查化学过程的示踪技术的应用而获得1943年诺贝尔奖〔neptunium〕A silvery, metallic, naturally radioactive element, atomic number 93, the first of the transuranium elements. Its longest-lived isotope is Np-237 with a half-life of 2.1 million years. Found in trace quantities in uranium ores, it is produced synthetically by nuclear reactions. See table at element 镎：一种银白色的、金属性天然放射性元素，原子序数为93，第一个超铀元素。其周期最长的同位素为Np-237，半衰期为210万年。见于铀矿的示踪量中，由核反应合成生产出来 参见 element |
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