美国电信工业协会统计数据表明广域网的快速增长的势头在2008到2009年度没有一点受挫的样子。

And data from the Telecommunications Industry Association shows that the rapid increase in broadband Internet subscribers barely slowed in 2008 or 2009.

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从市场情况来看，电信业的竞争正在加剧，PSTN（公共交换电话网络）、CATV（有线电视网）、ATM和IP（数据网）都在相互窥视对方的传统市场。

According to the circumstances of the market, the competition of the telecom vocation is intensifying, the operators of PSTN, CATV, ATM and IP networks are peeking at others traditional markets.

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电信网、数据网和电视网正逐步走向融合，IP技术是其中的关键技术。

Telecom network, data network and cable TV network are going to work on one network, and the IP is the key technology.

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