干线光缆 meaning in Chinese

fotc fiber optic trunk cable

The trunk fiber network and the system of information network cities in china
干线光缆传输网与中国信息网络城市节点体系
The in - service fiber - optic - cable cut over had achieved significant results since its inception two years ago , in 2004 , the cut over time duration for the first - class backbone fiber optic cable was just 5 % of that in 2001
光缆带业务割接技术推广2年来取得显著成果， 2004年一级光缆干线光缆割接总时长仅为2001年割接时长的5 。