公务: official business波段: wave band; wave range; band; ...公务波段信号: service band signal业务波段: service band公务波道: service channela波段: a band; a-bands波段: band s; s band; s-band波段: [电学] wave band; wave range; band; range; frequency range; frequency band波段 (): band (radio)公务: public affairs; official business 执行公务 exercise a public function; 公务护照 service passport; 公务人员 government functionary气象业务波道: meteorological operational channelc波段: c bandg波段: g bandh波段: h bandj波段: j bandk波段: k band; k-bandl波段: l band; l-band rendezvous beaconm波段: m bandn波段: n bandp波段: p bandq波段: q band; q-bandr波段: r bandv波段: v-bandx波段: x-band frequency波段(约: k-band
