For the new contract, Dell Perot Systems will continue to provide network operations, desktop services, email, information assurance, telephones, and connectivity to long-haul communications.

根据新的合同，戴尔perot系统公司将继续提供网络运营、桌面服务、电子邮件、信息安全保障、电话和长途通信。

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With the evolution of metropolitan transmission network and the bandwidth requirement, DWDM technology will be entered into metropolitan network area from long haul backbone network.

随着城域传输网的演变和对带宽的需求，密集波分复用技术将由长途骨干网进入城域传输网。

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WDM especially DWDM is widely used in long haul network because it can extremely expand the band, however in short haul area CWDM is paid attention to be cause its properties.

波分复用尤其是DWDM技术能极大拓展带宽，在长途干线上得到广泛应用，而在短距离传输中，CWDM由于其一系列特点已越来越引起人们的重视。

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"Virgin Atlantic will offer millions of passengers in Scotland and Manchester connections around the world through our and our partners' long-haul network, with the additional benefit of providing direct services to and from London Heathrow, " he said.

BBC: A Virgin Atlantic plane landing at Heathrow

The company installed 63 additional Private IP edge routers for a total of 915 edge routers in 245 sites throughout 63 countries, activated more than 1, 500 kilometers (932 miles) of ultra-long-haul network across the southern part of the United Kingdom, and completed a joint fiber build in Singapore, which almost doubles the coverage of the Singapore fiber-optic network.

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The Internet was designed so that long-haul communications could be disrupted anywhere along the web of network lines and still continue.

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