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Subject
- 2 voice-frequency rail circuit
- 1 automatic measuring
- 1 coefficient of sensitivity to dam...
- 1 control employment sections of th...
- 1 crossing signalling
- 1 operation of the track circuit
- 1 the method of counting axles
- 1 track point sensor tone track cir...
- 1 автоматичні вимірювання
- 1 коефіцієнт чутливості до пошкодже...
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Date issued
- 3 2014
Has File(s)
- 3 true