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单词 yagi aerial
释义

Collins Concise English Dictionary © HarperCollins Publishers::
Yagi aerial /ˈjɑːɡɪ; ˈjæɡɪ/ n
  1. a highly directional aerial, used esp in television and radio astronomy, consisting of three or more elements lying parallel to each other, the principal direction of radiation being along the line of the centres
Etymology: 20th Century: named after Hidetsugu Yagi (1886–1976), Japanese engineer
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