略語大辞典 [E] 29 MMB Mass Media Bureau (アメリカ連邦通信委員会の)マスメディア局. 放送などの許認可を担当する部局.Mass Media Bureau; a bureau of the FCC(Federal Communications Commission); with responsibility for theregulation of broadcast television, radio,cable television and their ancillary services; ref. CCB(Common Carri 丸善「略語大辞典」JLogosID : 11861294