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单词 arc-back
释义

WordReference Random House Unabridged Dictionary of American English © 2024
arc-back  (ärkbak′),USA pronunciation n. [Electronics.]
  1. Electronicsan undesirable phenomenon, occurring in rectifier tubes, in which current flows in the reverse direction, from anode to cathode, as a result of arcing, limiting the usable voltage of the tube.

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