 |
| |||
| inspection tube; sight pipe (or sighting pipe dimakan) | |||
| смотровая труба: 6 do fraz, 4 tematyki |
| Aerohydrodynamika | 1 |
| Budownictwo | 2 |
| Ekologia | 2 |
| Morski | 1 |
|
| |||
| inspection tube; sight pipe (or sighting pipe dimakan) | |||
| смотровая труба: 6 do fraz, 4 tematyki |
| Aerohydrodynamika | 1 |
| Budownictwo | 2 |
| Ekologia | 2 |
| Morski | 1 |