“波段”造句

愈来愈多的电视台和广播电台使无线电波段愈来愈拥挤。
More and more TV and radio stations are crowding the airwaves.

卡车司机用民用波段无线电呼救。
A truck driver used his CB radio to call for help.

中短波段收音机
a radio set with medium and short wavebands