Only by fully protect three key regions: the background server region, the middle of the front-end Web platform and the business end, to achieve high availability.
只有充分保障三个关键区域：后台服务器区域、中间的网络平台和前端的业务终端，实现高可用。
Only by fully protect three key regions: the background server region, the middle of the front-end Web platform and the business end, to achieve high availability.
只有充分保障三个关键区域：后台服务器区域、中间的网络平台和前端的业务终端，实现高可用。
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