Two-fiber bi-directional path protection ring的意思|示意
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双纤双向通路保护环
Two-fiber bi-directional path protection ring的网络常见释义
二纤双向通道保护环 ...道保护环 Two-fiber unidirectional path protection ring 二纤双向通道保护环 Two-fiber bi-directional path protection ring ; directional path protection ring ..