direction

  • direction coupler, GRIN-rod lens - 梯渡折射率透鏡定向藕合器
  • direction finder{=DF} - 探向器,測向器
  • direction finding - 尋向
  • direction finding receiver - 測向接收機
  • direction finding system - 測向系統
  • direction of scanning - 掃描方向
  • direction-finding antenna - 尋向天線
  • direction-finding station - 測向台

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