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中国电信建成全球首条全G.654E陆地干线光缆_中华网

中国电信建成全球首条全G.654E陆地干线光缆_中华网

china.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from china.com Daily Mail and Mail on Sunday newspapers.

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