879.
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電信網絡中的PDH技術 ![](/liaode/images/fjie0.gif)
市場價:1180元 優惠價:990元
立刻節省:190元
This book is a basic work specialized on modern digital communication, which consists of plesiochronous digital hierarchy, digital multiplexing principle, essential realization technology, relevant recommendations of ITU, CCITT/TSS and the applicatio等
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