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davy lampsの例文

例文

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  1. They are much larger that the Davy lamp and give a better light.
  2. The research led to the Davy lamp, and Hodgson's help was acknowledged.
  3. The explosion was apparently caused by a hole in one of the workers'Davy lamps.
  4. In the early days of coal mining the Davy lamp was used by miners for lighting.
  5. All except the very earliest Davy lamps have a double layer at the top of the cage.

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