常用的网络设备有网卡、交换机、集线器、路由器、Modem、防火墙、UPS、测试设备、网络机柜、打印服务器、光纤设备等等
(Commonly used network devices include network cards, switches, hubs, routers, Modem, firewalls, UPS, test equipment, network cabinets, print servers, fiber optic equipment, etc.)
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