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单词 drawtube
释义

WordReference Random House Unabridged Dictionary of American English © 2024
draw•tube  (drôto̅o̅b′, -tyo̅o̅b′),USA pronunciation n. 
  1. Opticsa tube sliding within another tube, as the tube carrying the eyepiece in a microscope.
  • draw + tube 1890–95

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