rock drill meaning in Hindi

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To view the remastered version, see " SAHB Stories & Rock Drill ".
Warsop and Hill used their own rock drills and the more powerful blasting gelatine.
The tunnel was built using the Burleigh Rock Drill, designed and built in Fitchburg.
There are also studies for key works, such as " Study for Rock Drill ".
He invented a steam rock drill and an air compressor and designed an ore dock.
Common applications included rock drills and jack hammers.
1896-More than 1, 000 Cornish rock drills were in use on The South African Rand alone.
The rover has nine cameras, including a microscopic imager, and a rock drill to examine the terrain.
Alex Harvey found this statue deeply moving and it influenced the entire " Rock Drill Suite ".
In 1851, James Fowle received a patent for a rock drill powered by steam or compressed air.

noun.