Specifically, AT&T will add 2,000 new cell sites and upgrade existing cell sites with three times more fiber links than it had in 2009.

具体来说，AT&T 将增加2000个新基站，升级现有基站的光纤连接数量是2009年的三倍。

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Even though smartphones feature rich Internet applications, most modern cell phones have browsers in them that enable users to download ringtones and use WAP sites.

虽然说智能手机代表丰富的互联网应用，但是大部分功能手机都带有浏览器，让用户可以下载铃声，访问WAP站点。

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The researchers sampled air above basal cell tumors and found a different profile of chemical compounds compared to skin located at the same sites in healthy control subjects.

研究人员自基底细胞癌患处周围取空气样本，并与健康样本相同区域皮肤进行比较，发现了不同轮廓的化合物。

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"Where the cell sites ought to be is where the people are, " he said.

FORBES: Wireless

Fewer cell sites are needed to cover a given area and it penetrates buildings better.

FORBES: More Broadband Spectrum: Who Benefits?

C. area service since last April, improving cell sites so its network can handle 37% more data.

CNN: Wireless carriers beef up networks for Obama inauguration