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Data centers have long made some efforts at physical security. But most of these security measures—high fences topped with barbed wire, carefully controlled access, and security cameras—were aimed at preventing espionage or sabotage by a person on the ground, not aerial attacks.。新收录的资料是该领域的重要参考
。关于这个话题，新收录的资料提供了深入分析
В Тегеране пролились нефтяные дожди и предупредили о кислотных14:17
Go to technology。业内人士推荐新收录的资料作为进阶阅读