| • percussive rotary drilling | |
| परिताडन: percussion | |
| घूर्णी: rote rotifer rotative rotaing rotary rotary | |
| घूर्णी प्रवेधन: rotary drilling | |
| प्रवेधन: boring boring head drill drilling | |
परिताडन घूर्णी प्रवेधन अंग्रेज़ी में
[ paritadan ghurni pravedhan ]
| • percussive rotary drilling | |
| परिताडन: percussion | |
| घूर्णी: rote rotifer rotative rotaing rotary rotary | |
| घूर्णी प्रवेधन: rotary drilling | |
| प्रवेधन: boring boring head drill drilling | |
