• cavity friction | |
विवर: cavity den hollow lodge orifice water hole sinus | |
घर्षण: friction grinding grind abrasion polishing abrade | |
विवर घर्षण अंग्रेज़ी में
[ vivar gharsan ]
• cavity friction | |
विवर: cavity den hollow lodge orifice water hole sinus | |
घर्षण: friction grinding grind abrasion polishing abrade | |