| • अध: खनन | |
| underhand: कपटपूर्ण ढंग से | |
| stoping: निखनन | |
underhand stoping मीनिंग इन हिंदी
underhand stoping उदाहरण वाक्य
उदाहरण वाक्य
- Study of applications of spontaneous combustion prevention technology in high inclination - angle underhand stopping working faces with comprehensive mechanized caving method