hfc双向网络 hfc double-directions net ; hfc bilateral network

双向HFC网 bidirectional HFC net

双向hfc网络 two-way hfc network ; bidirectional hfc network ; bi-directional hfc ; bi-hfc network

双向hfc接入网 dual hfc access network ; two-way hfc access network

HFC双向宽带网 HFC dual-way broadband network