liuxilin1215 发表于 2015-7-27 08:39:12

IEC 60793-1-49-2006 Optical fibres – Part 1-49: Measurement methods and test p

IEC 60793-1-49-2006 Optical fibres – Part 1-49: Measurement methods and test procedures – Differential mode delay

admin 发表于 2015-7-27 10:10:35

谢谢您的分享,金币已奖励!
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