1.  audio frequency
2.  AU
3.  audiofrequency

• 1. 声频: audio frequency | audio | acoustic frequency | voice frequency
• 2. 声频放大器: audio amplifier | Audifier | sonic frequency amplifier | audio-frequency amplifier
• 3. 超声频率: Supersonic power | supersonic frequency | kHz

更多释义

• 1.有些种类的蝙蝠会根据回声频率的变化来调整向猎物移动的方向和速度。
  Responding to changes in the CF echo's frequency, bats of some species correct in flight for the direction and velocity of their moving prey.
  dict.yoduao.com
• 2.例如，电话把声能转换为电信号并重新转换回声频来启动对话。
  A telephone, for example, converts sound energy to an electrical signal and back again to audio to enable conversation.
  dict.yoduao.com
• 3.他补充说：“学弹奏乐器就得学习音调和乐谱，这样能提高自己声频信息存储能力。”
  He added: "When you play a musical instrument you have to learn about tone and about scores and your ability to store audio information becomes better."
  dict.yoduao.com

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