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06onewaypointtomultipointdatatransmissionsystem一点向多点数据传输系统007opensysteminterconnectionmodel开放系统互连模型008Oracle（OpticalReceptionofAnnouncementsbycodedLineElectronics，用行编码法的通告视觉接收）英国独立广播公司（IBA）的图文电视业务名009Int
06onewaypointtomultipointdatatransmissionsystem 007opensysteminterconnectionmodel Open Systems Interconnection Model 008Oracle (OpticalReceptionofAnnouncementsbycodedLineElectronics, Visual Reception with Notification of Line Coding) British Broadcasting Company (IBA) Teletext Business Name 009Int