Archive:Rail signals (research)/zh: Difference between revisions
		
		
		
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{{Languages}}  | {{archive}}{{Languages}}{{:Infobox:Rail signals (research)}}  | ||
{{:Infobox:Rail signals (research)}}  | 允许在同一条{{L|Railway}}上组织多列火车通过。  | ||
== 请参见 ==  | |||
* {{L|Research}}  | |||
* {{L|Technologies}}  | |||
=  | {{TechNav|category=false}}  | ||