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extremely low frequency

/ɪkˈstriːmli ləʊ ˈfriːkwənsi/

翻译: 指频率在3至30赫兹之间的电磁辐射,主要用于科学研究、潜艇通信和地球物理探测。

1 个条目

phrase

/ɪkˈstriːmli ləʊ ˈfriːkwənsi/C1formalscientific
  • zh指频率在3至30赫兹之间的电磁辐射,主要用于科学研究、潜艇通信和地球物理探测。

A term referring to electromagnetic radiation with frequencies between 3 and 30 hertz, used in scientific research, submarine communications, and geophysical studies.

  1. Electromagnetic radiation bandC1formal

    A band of electromagnetic radiation with frequencies between 3 and 30 Hz, used for communication with submarines and in geophysical research.

    zh极低频电磁辐射频段

    • Extremely low frequency waves can penetrate deep into the ocean.
    • Scientists use ELF to study the Earth's magnetic field.
    • Submarines receive signals via extremely low frequency transmissions.