This paper introduces the measures and its effect that the quality of electric supply system increased in railroad communication appliance.
介绍了提高铁路通信设备供电系统质量的措施及其效果。
A plan about the application of WDM system in extending the capacity of existing communication transmission link of Yongxia section on Yingxia Railroad is discussed.
讨论了采用波分复用技术扩容鹰厦线永厦段通信传输链路的方案。
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