تنقية بواسطة: الموضوع
السجلات المعروضة 1 -- 3 من 1
| Ballast layer - ballasted track (1) |
| Beam - Elastic Foundation - train load (1) |
| railroad ballast - Discrete Element Method (DEM) (1) |
| Ballast layer - ballasted track (1) |
| Beam - Elastic Foundation - train load (1) |
| railroad ballast - Discrete Element Method (DEM) (1) |