电线电缆网 > 标准共享 > ITU-T G.652-2005 Characteristics of a single-mode optical fibre and cable （完整版）
ITU-T G.652-2005 Characteristics of a single-mode optical fibre and cable - 无图版
绿野仙踪 --- 2008-03-31 10:17:00
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ITU-T G.652-2005 Characteristics of a single-mode optical fibre and cable .pdf