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Optical fiber transmission distance is 20 km do

lpj1015262010-03-15 10:11:33 +0000 #1
the longest single-mode optical fiber transmission distance is 20 km do
zhaifanghui172010-03-15 10:27:22 +0000 #2
It depends on the specific optical transmission equipment, and similar equipment, lasers are not the same not the same distance it

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