| • रक्षी स्तंभ | |
| protecting: रक्षी | |
| pillar: खम्भा टेकनी दीवार | |
protecting pillar मीनिंग इन हिंदी
protecting pillar उदाहरण वाक्य
उदाहरण वाक्य
- The device of loading coal and protecting pillar in conventionally - mechanized coal winning technology face
- Analyzing to the phenomenon of underground pressure and the stress of surrounding rock in roadway protecting pillar