| • जल प्रवेधन | |
| wet: ओदापन गीलापन | |
| drilling: कसरत खुदाई बरमाना | |
wet drilling मीनिंग इन हिंदी
wet drilling उदाहरण वाक्य
उदाहरण वाक्य
- Drill hammers arriving for use at the mines in the late 1940s did not allow wet drilling, which led to the exposure of thousands of miners to dangerous quartz dust.