| • double beam oscillograph | |
| द्वि: double acting double helical gear double | |
| दोलन: oscillation swing vibration swinging vacillation | |
द्वि -किरण दोलन लेखी अंग्रेज़ी में
[ dvi -kiran dolan lekhi ]
| • double beam oscillograph | |
| द्वि: double acting double helical gear double | |
| दोलन: oscillation swing vibration swinging vacillation | |
