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单词 meitnerium
释义
meitnerium
(extremely rare)
n

WORD FAMILY
meitnerium
n a radioactive transuranic element
Syn|Hyper
Mt, atomic number 109, element 109
chemical element, element
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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更新时间:2024/9/22 5:43:37