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ballast bed degradation (1) |
maintenance (1) |
micro-tremor analysis (1) |
Railway track (1) |
sleeper support conditions (1) |
track geometry deterioration (1) |
ballast bed degradation (1) |
maintenance (1) |
micro-tremor analysis (1) |
Railway track (1) |
sleeper support conditions (1) |
track geometry deterioration (1) |