safety lamp वाक्य

उदाहरण वाक्य

1. The miners hence worked using open flame lights instead of safety lamps.
2. Before the invention of safety lamps, miners used candles with open flames.
3. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights.
4. Another founder member was William Reid Clanny, a pioneer of the safety lamp.
5. Sir Humphry Davy discovered seven chemical elements, and invented the miner's safety lamp.
6. All other illumination was from Marsaut and Donald type safety lamps.
7. Not all the safety lamps were found, however one was found that was unlocked.
8. Samson also stated that old workings should only be accessed with a safety lamp.
9. The miners used naked lights unlike the English miners who used the safety lamps.
10. Eccles became the first municipal corporation in England to operate a motorised Miners'Safety Lamps.