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单词 plan position indicator
释义

WordReference Random House Unabridged Dictionary of American English © 2024
plan position in′dicator, 
  1. Electronicsa radarscope on which an object reflecting radar waves shows its bearing and distance from the radar detector by causing a spot of light to appear on a screen that represents a map of the area around the detector. Abbr.: PPI
  • 1940–45

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更新时间:2024/9/21 8:11:54