| • ventilation shaft | |
| संवातन: ventilating system ventilation system ventilation | |
| नाल: canals gun barrel tube blowpipe calk trumpet culm | |
संवातन नाल अंग्रेज़ी में
[ samvatan nal ]
| • ventilation shaft | |
| संवातन: ventilating system ventilation system ventilation | |
| नाल: canals gun barrel tube blowpipe calk trumpet culm | |
