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law·ren·ci·um AHD[lô-rĕnʹsē-əm, lō-] D.J.[lɔːˈrensiːəm, ləʊ-]K.K.[lɔˈrɛnsiəm, lo-]n.Symbol Lr （名词）符号 Lr - A short-lived, radioactive synthetic transuranic element produced from californium and having isotopes with mass numbers 255 through 260 and half-lives of a few seconds to three minutes; atomic number 103. See table at element 铹：一种寿命期短的、人工合成的放射性超铀元素，从锎中生成，有质量从255到260的同位素，半衰期从几秒钟到三分钟；原子序数103 参见 element
- After Ernest Orlando Lawrence 源自 欧内斯特·奥兰多 Lawrence
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