Long wave
01
長波, 長波
a radio wave with a frequency under 300 kHz and a wavelength of more than 1 kilometer that is used for broadcasting
例
The radio station broadcasts on a long wave frequency, allowing it to be heard over vast distances.
ラジオ局は長波周波数で放送しており、広い範囲で聞くことができます。
Ships use long wave communication to stay in touch with coastal stations.
船舶は沿岸局と連絡を保つために長波通信を使用します。
