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词汇 berkelium
释义
berkelium
noun [ U ] uk/bɜːˈkiː.li.əm/ us/ˈbɜ˞ː.kli.əm/
(symbol Bk)(放射性元素)
a chemical element that is a soft, silver-white metal, and is radioactive
Berkelium is a very expensive and rare element. 锫是一种非常昂贵的稀有元素。
    更多例句
  • He realized that berkelium could be extracted at the same time.
  • The element was manufactured in a particle accelerator by smashing together isotopes of calcium and a radioactive element called berkelium.
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