frequency,

  • frequency, alert - 報警頻率
  • frequency, alterrate - 備用頻率
  • frequency, guard band - 保護頻帶
  • frequency, lowest useful high - 最低可用高頻
  • frequency, night - 夜間(通信)頻率
  • frequency, nomalized - 正規化頻率
  • frequency, optimum fransmission - 最佳傳輸頻率
  • frequency, penetration - (電離層)穿透頻率
  • frequency, photodiode cutoff - 檢光器截止頻率

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