http://axinicon.livejournal.com/ ([identity profile] axinicon.livejournal.com) wrote in [personal profile] sanchosd 2016-02-07 10:22 pm (UTC)

Кроме того, было бы неплохо оборудовать устройство сигнализации о приближении поезда, которое меряет напряжение на рельсах.
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