双向有线电视网
the web of two-way cable television
有线电视双向网络
bi-directional HFC network
双向有线访问系统
two-way wiring interview system
有线电视宽带接入网
CATV broadband access network
有线电视勘察设计
survey and design for the CATV network
有线电视技术
cable television technology
CATV technology