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optical fiber techenology

上传者: 2020-06-09 06:02:07上传 PDF文件 924.74KB 热度 25次
Anincreasingproportionoftheworld’scommunicationsarecarriedbyfiber opticcables.Ithasspreadquietly,almostwithoutbeingnoticedintoeverysitu- ationinwhichinformationisbeingtransmittedwhetheritiswithinthehome hi-fisystem,cabletelevisionortelecommunicationcablesund
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