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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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电信专业英汉词典o

电信专业英汉词典f

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电信专业英英词典G-3

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SSS 2009-10-06

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