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中国联通专家：光缆每年30万次故障 其中干线七千次
source link: https://tech.sina.com.cn/t/2019-07-11/doc-ihytcerm2822244.shtml
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新京报讯（见习记者陈诗怡记者陈维城）“我国光缆每年大概发生30万次故障，其中干线7000次。”7月10日，中国联通中讯邮电咨询设计院有限公司高级专家贺永涛在2019中国互联网大会上说道，“经过艰难的努力，现在能把维护指标控制在大概一千公里干
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