sdh optical fiber transmission
sdh optical fiber transmission
SDH光纤传输
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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SDH optical fiber communication system is being used widely by its advantages: huge volume of communication, high performance of transmission, facile configuring and powerful management.
SDH光纤通信系统以其通信容量大、传输性能好、接口标准、组网灵活方便、管理功能强大等优点获得越来越广泛的应用。
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