It also reviews the principles of DQDB MAN Standard as a transition to B-ISDN, induding its topology architecture, functional system of its node, frame structure and network protocol.是什么意思_It also reviews the principles of DQDB MAN Standard as a transition to B-ISDN, induding its topology architecture, functional system of its node, frame structure and network protocol.在线翻译_英语_读音_用法_例句