1) 1 550 nm fiber-optical join-network from city to county
1550nm市县联网
2) 1550 nm Optical network
1550nm光网络
3) 1 550 nm metropolitan area network
1550nm城域网
4) cable digital TV networking in cities and counties
有线数字电视市县联网
1.
Then it described the application outlook of 1550nm fiber-optic ring network in the cable digital TV networking in cities and counties.
通过对基于DVB-C 1 550 nm长距离模拟单向光纤传输系统改造为自愈性环网的实践,解决了1 550 nm光纤环网工程中遇到的接收点主路与备路信号源QAM频点不一致,接收点光功率变化的控制及接收点主路、备路信号切换控制3个主要问题,说明了1 550 nm光纤环网在有线数字电视市县联网中的广泛应用前景。
5) 1 550 nm
1550nm
1.
This essay mainly introduces how to use the 1 550 nm technology to transform the three grades of HFC network (from county to town and to village), so that the CATV digitalization and the integrated transformation into digital TV can be realized.
介绍利用1550nm技术改造县到乡镇到村的HFC3级网络,推进有线电视数字化,实现数字电视的整体转换,同时考虑到今后业务发展的需求,逐步实现光纤到户的双向网络改造时能有效利用现有的1550光传输网络结构,实现网络资源共享。
2.
The paper discusses how to apply 1 550 nm fiber optical transmission technology at the broadcasting and television station in the rural area far from the central machine house, analyzes the technical and economical feasibility of the scheme.
就离中心机房较远的乡镇广电站如何运用1550nm光纤传输技术方案进行探讨,从经济效益角度和技术方案的可行性方面进行论述。
6) connecting three cities
三市联网
补充资料：[3-(aminosulfonyl)-4-chloro-N-(2.3-dihydro-2-methyl-1H-indol-1-yl)benzamide]
分子式：C16H16ClN3O3S
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
分子量：365.5
CAS号：26807-65-8
性质：暂无
制备方法：暂无
用途：用于轻、中度原发性高血压。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条