在城市信息网络和重点防护对象外围的翻译：Information networks in cities, and focused on defense perimeter 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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Information networks in cities, and focused on defense perimeter

In city information network and key protection object periphery

In the urban network of information and focus on protective object outlying

Information networks in cities, and focused on defense perimeter