最終更新日：2024/07/28

An electromagnetic wave having a wavelength between approximately 10 and 100 meters, corresponding to frequencies between 3 and 30 MHz.

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shortwave

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shortwave

noun

I listened to the shortwave radio for news updates.

意味（1）

Shortwaves are longer than microwaves.

意味（2）

(colloquial, usually in the plural) Any frequency in this range, especially when used in broadcasting.

Many stations broadcast on shortwaves.