radio beam

英 美
  • n.无线电射束
  • beam vi.微笑;发光vt.播送;发射;用梁支撑n.桁条;光线;(光线的)束;(横)梁
  • radio n.收音机;无线电v.用无线电通讯
Noun:
  1. a signal transmitted along a narrow path; guides airplane pilots in darkness or bad weather

    1. Following a radio beam. Used of aircraft.
      跟随无线电波。用于指飞机