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  • FTTB
    光纤到楼 (Fiber To The Building, FTTB) 技术，作为一种重要的 [[宽带接入]] 技术，近年来� [[Category:光纤到楼 (Fiber to the Building)]] ...
    8 KB (96 words) - 14:18, 7 May 2025
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