为充分利用管道资源、满足日益增长的光纤需求，光缆由小芯数向大芯数发展已成必然趋势。从光缆的发展、选型、结构及技术参数等方面，对大芯数光缆在本地网中的应用做了详细阐述。%In order to make ful use of channel resource and meet the growing needs of the optical fiber, optical cable development from smal core number to large core number has become an inevitable trend. It elaborates the application of large core number fiber to the local network from the development of cable, selection, structure and technical parameters and so on.
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