| • spacing between mines | |
| सुरंग: cave mine tunnel chestnut underpass subway sap | |
| अंतरालन: interpacing spacing | |
सुरंग अंतरालन अंग्रेज़ी में
[ suramga amtaralan ]
| • spacing between mines | |
| सुरंग: cave mine tunnel chestnut underpass subway sap | |
| अंतरालन: interpacing spacing | |
