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| 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) | |||
| depression of track; low spot in the track | |||
| просадка пути: 3 短语, 2 学科 |
| 铁路术语 | 2 |
| 马卡罗夫 | 1 |