The setup can support 18,000 simultaneous wi-fi connections, while a distributed antenna system (DAS) boosts mobile phone coverage in the stadium. "So, you know your phone will work," says Phil Davies, IT Director at Everton Football Club.
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。关于这个话题，夫子提供了深入分析
He draws parallels to chlorofluorocarbons pollutants released from refrigerators that bore a hole in the ozone layer last century, and were eventually banned.
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