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单词 bipack
释义

WordReference Random House Unabridged Dictionary of American English © 2024
bi•pack  (bīpak′),USA pronunciation n. [Photog.]
  1. Photographytwo separate films, each having an emulsion layer sensitive to a different color, held together with their emulsion layers facing for simultaneous exposure through the back of one.
  • bi-1 + pack1 1920–25

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