英语翻译摘要CATV（有线电视）网是高效廉价的综合网络,它具有频带宽,容量大,多功能、成本低、抗干扰能力强、支持多种业务连接千家万户的优势,它的发展为信息高速公路的发展奠定了基

Question

英语翻译
摘要
CATV（有线电视）网是高效廉价的综合网络,它具有频带宽,容量大,多功能、成本低、抗干扰能力强、支持多种业务连接千家万户的优势,它的发展为信息高速公路的发展奠定了基础.就我国最近几年CATV网发展来看,全国已建有线电视台超过1500座,用户数达8000多万,在全国覆盖面达50%,并且每年仍以30%的速度增长.电视机已成为我国家庭入户率最高的信息工具之一,CATV网也成最贴近家庭的多媒体渠道,只不过它目前还是靠同轴电缆向用户传送电视节目,还处于模拟水平.宽带双向的点播电视(VOD〕及通过CATV网接入Internet进行电视 点播、CATV通话等是CATV网的发展方向,最终目的是使CATV网走向宽带双向的多媒体通信网.
本课题的目的是掌握CATV光纤网络工程方案,设计缙云县CATV网络乡镇节点图.熟悉相关技术标准和规范,对光功率分配和技术指标的分配会予以计算,绘出网络配置图、节点技术指标参数表及器材清单.
关键词：CATV,光纤设计,节点,技术指标.

Answer 1

摘要
CATV（有线电视）网是高效廉价的综合网络,它具有频带宽,容量大,多功能、成本低、抗干扰能力强、支持多种业务连接千家万户的优势,它的发展为信息高速公路的发展奠定了基础.就我国最近几年CATV网发展来看,全国已建有线电视台超过1500座,用户数达8000多万,在全国覆盖面达50%,并且每年仍以30%的速度增长.电视机已成为我国家庭入户率最高的信息工具之一,CATV网也成最贴近家庭的多媒体渠道,只不过它目前还是靠同轴电缆向用户传送电视节目,还处于模拟水平.宽带双向的点播电视(VOD〕及通过CATV网接入Internet进行电视 点播、CATV通话等是CATV网的发展方向,最终目的是使CATV网走向宽带双向的多媒体通信网.
本课题的目的是掌握CATV光纤网络工程方案,设计缙云县CATV网络乡镇节点图.熟悉相关技术标准和规范,对光功率分配和技术指标的分配会予以计算,绘出网络配置图、节点技术指标参数表及器材清单.
Summary
The CATV(cabled T.V.) net is an efficiently cheap comprehensive network,it has a Pin bandwidth,have great capacity,multi-function,the cost be low,the anti- interference's ability be strong,support various business conjunction thousand is ten thousand door advantages,it of the development lay foundation into the development of information superhighway.In regard to the our country last few years CATV net development,the whole country has already set up cable television station more than 1500,the customer number reach to 8000 have another ten thousand,overlay noodles to reach to 50% in the whole country,and still increase by 30% speed annually.The television has become an our country a family one of the information tools with tallest rate into the door,the CATV net also becomes to come close most homely of multi-media outlet,only it still depends coaxial cable to deliver television program toward the customer currently and also be placed in emulation level.The breadth takes a double to of order and sow television(VOD]and connect into Internet to carry on a television point through a CATV net sow,the CATV converse etc.is a CATV net of development direction,end purpose is make CATV net alignment the breadth take a double to of the multimedia correspond by letter a net.
The purpose of this topic controls CATV fiber-optic network engineering a project,the design Jin network village of the cloud county CATV node diagram.Acquaint with related technique standard and norm,will give a calculation to the allotment of light power allotment and technique index sign,draw a network allocation diagram,form and device detailed list of the index sign parameter of the node technique.