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单词 contrast medium
释义

WordReference Random House Unabridged Dictionary of American English © 2024
contrast me′dium, [Med.]
  1. Medicinea radiopaque substance injected into a part of the body, as the stomach or duodenum, to provide a contrasting background for the tissues in an x-ray or fluoroscopic examination.
  • 1950–55

Collins Concise English Dictionary © HarperCollins Publishers::
contrast medium n
  1. a radiopaque substance, such as barium sulphate, used to increase the contrast of an image in radiography
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