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Adding Approach-departure Power Failure Indication Circuit in Automatic Block Section
Author(s): 
Pages: 65-66
Year: Issue:  1
Journal: Railway Signalling & Communication Engineering

Abstract: 用继电器的空闲接点组成停电表示电路.当车站设备停电时,在控制台上给出区间的占用表示,便于人员监督列车的运行.
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