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SSS 2011-05-23

This is Scientific American's 60-Second Science. I'm Christopher Intagliata. Got a minute? Whether it's for streaming Netflix or sharing files, we're gobbling up more and more dataand we want it faster. But even shooting data with lasers over fiber-o

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PPSN public packet switched network Premises Distribution System (PDS) PDS is the transmission network inside a building or among a group of buildings, for example an office park or a campus. PDS is u

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电信英语

电信专业英英词典D-4

D type Channel Bank A D type channel bank is channel termination equipment used for combining (multiplexing) individual analog channel signals on a time division basis. D type channel banks provide in

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电信英语

电信专业英英词典A-2

Analog - Transmitting information that is characterized by continuously variable quantities (such as with AM or FM). This is different from digital transmission, which is characterized by discrete bit

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电信英语

VOA慢速英语--爱沙尼亚政府欲实现100%无纸化工作

Estonian Government Aims to End Paperwork Three-day-old Oskar Lunde sleeps in a small bed at an Estonian hospital. Across the room, his father turns on a laptop computer. Now we will register our child, Andrejs Lunde says, as he lifts his identificat

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TED演讲:科技为人道主义带来的变化(4)

In Nigeria, 在尼日利亚 open-source, open-source SMS tools are being used by the Red Cross community workers 红十字会的工作人员也在使用开放的短信工具 to gather information from the local community 他们从当地社区里收集资

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