| • telegraph equipment lab | |
| तार: chord catgut flimsy strings cablegram conducting | |
| उपस्कर: apparatus appointment equipment fitting | |
| प्रयोगशाला: lab laboratory science laboratory science lab | |
तार उपस्कर प्रयोगशाला अंग्रेज़ी में
[ tar upaskar prayogashala ]
