服务器带外卡是啥?网络瘫痪时如何远程急救,服务器带外卡的作用与网络瘫痪远程急救策略
What does a server with an external card mean? How to provide remote first aid when the network is down? What is the role of a server with an external card and the remote first aid strategy for network failure
以上为机器翻译结果，长、整句建议使用 人工翻译 。