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vlf

/ˌviː.elˈef/

翻译: 甚低频(Very Low Frequency)的缩写,指频率范围在3千赫兹至30千赫兹的无线电频段,常用于某些通信和导航系统。

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noun

C1formalcommontechnical缩写/ˌviː.elˈef/

不可数 · 专有名词

An abbreviation for Very Low Frequency, referring to the radio frequency range of 3 to 30 kilohertz, used for certain types of communication and navigation systems.

  • 🇨🇳甚低频(Very Low Frequency)的缩写,指频率范围在3千赫兹至30千赫兹的无线电频段,常用于某些通信和导航系统。
  1. Very Low Frequency C1 formal technical

    A radio frequency band ranging from 3 to 30 kilohertz, used for long-distance communication and navigation.

    • VLF waves can penetrate deep into the ocean for submarine communication.
    • The station broadcasts time signals on the VLF band.
    • Scientists use VLF to study the Earth's ionosphere.

    🇨🇳甚低频