shortwave

N คลื่นแม่เหล็กไฟฟ้า ที่ มี ความถี่  30-60เมตร  kluan-mea-lak-fai-fa

shortwave

short wave |ˈSHôrtˈwāv ˈʃɔrtˈˌweɪv | ▶noun a radio wave of a wavelength between about 10 and 100 m (and a frequency of about 3 to 30 MHz ): [ as modifier ] : a shortwave transmitter. • broadcasting using radio waves of this wavelength: [ as modifier ] : shortwave radio.

shortwave

sh ó rt w à ve 名詞 U 形容詞 〘電 〙(波長が10 --100mの )短波 (の ).