| • countermining device | |
| सुरंग: cave mine tunnel chestnut underpass subway sap | |
| युक्ति: artifice device | |
सुरंग प्रत्युपायरोधी युक्ति in English
[ suramga pratyupayarodhi yukti ] sound:
| • countermining device | |
| सुरंग: cave mine tunnel chestnut underpass subway sap | |
| युक्ति: artifice device | |
