Yahoo奇摩字典 網頁搜尋

  1. Davy lamp

    • IPA[ˈdāvē lamp]


    • n.
      a miner's portable safety lamp with the flame enclosed by wire gauze to reduce the risk of an explosion of gas.
    • noun: Davy lamp, plural noun: Davy lamps

  2. 知識+

    • 20點 急~急!!!! 英文”小”短文

      ...burn hundreds of hours as long as it [the lamp] contains a high resistance (電阻) [filament] in a very... the light bulb? No, Humphry Davy was the first person who invented the...