| • द्वि-फोकसी नलिका | |
| focus: नाभि देखने योग्य | |
| tube: टोंटी ट्यूब नल नली | |
focus tube मीनिंग इन हिंदी
focus tube उदाहरण वाक्य
उदाहरण वाक्य
- Slattery realized that the European-made focus tubes with prolonged use resulted in harder ( or higher energy ) X-rays as the vacua in the tubes increased.