光缆主干
基于1个网页-相关网页
While urban areas are not short on fiber optic and copper cable, these physical data pipes are sometimes prohibitively expensive and difficult to run to the more remote reaches of the nation.
虽然城市地区不缺乏光纤和铜光缆，但这些物理数据管道有时候极其昂贵，也很难到达国家最偏远的地方。
youdao
应用推荐
模块上移
模块下移
不移动