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单词 uranium series
释义

WordReference Random House Unabridged Dictionary of American English © 2024
uranium se′ries, [Chem.]
  1. Chemistrythe radioactive series that starts with uranium 238 and ends with a stable isotope of lead of mass number 206.
Also, u•rani•um-radi•um se′ries (yŏŏ rānē əm rādē əm).USA pronunciation 
Collins Concise English Dictionary © HarperCollins Publishers::
uranium series n
  1. a radioactive series that starts with uranium-238 and proceeds by radioactive decay to lead-206
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