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单词 roentgen ray
释义

Collins Concise English Dictionary © HarperCollins Publishers::
roentgen ray n
  1. a former name for X-ray
WordReference Random House Unabridged Dictionary of American English © 2024
Roentgen ray′, 
  1. Medicine, Physics(sometimes l.c.) x-ray.
  • 1895–1900

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更新时间:2025/7/23 8:24:03