short wave
US /ˈʃɔːrtˌweɪv/
UK /ˈʃɔːrtˌweɪv/
1.
短波
radio waves of a wavelength between about 10 and 100 meters (a frequency of 3 to 30 MHz), used for long-distance transmission.
:
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He listened to international news on his shortwave radio.
彼は短波ラジオで国際ニュースを聞いた。
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Shortwave communication is often used in remote areas.
短波通信は遠隔地でよく使われる。