铁路轨道 railway ; track ; Railroad Track ; rail track

音频轨道电路 Audio Frequency Track Circuit ; FTGS ; audio track circuit

轨道路基 track bed

开放式轨道电路 Open Type Track Circuit

双轨道电路 double rail track circuit

叠加轨道电路 overlap track circuit

开路式轨道电路 open type track circuit ; [铁路] open track circuit ; normally open track circuit

铁路轨道建设 X Construction Lite ; X Construct

调频轨道电路 frequency modulated track circuit

直流轨道电路 dc track circuit