略語大辞典 [E] 36 PRB Private Radio Bureau (アメリカ連邦通信委員会の)私的電波監理局. 免許事務局.Private Radio Bureau; a licensing bureau of the FCC(Federal Communi-cations Commission); with responsibility for the regulation of private, two-way radio services, including public safety, industrial/business, marine, avia 丸善「略語大辞典」JLogosID : 11856495