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| depression of track; low spot in the track | |||
| rail surface bending (rail permanently deformed into a down-ward curve at a rail joint as a result of insufficient joint maintenance and poor ballast or subgrade conditions); track depression (rail permanently deformed into a down-ward curve at a rail joint as a result of insufficient joint maintenance and poor ballast or subgrade conditions) | |||
| просадка пути: 3 фрази в 2 тематиках |
| Залізничний транспорт | 2 |
| Макаров | 1 |