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Davy lamp

noun
🔊/ˈdeɪvi læmp/
🔊/ˈdeɪvi læmp/
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  1. a type of lamp, used in the past by miners, in which the flame was surrounded by a sheet of wire to prevent explosions戴维安全灯（旧时矿工使用）
    Word Originearly 19th cent.: named after its inventor, Sir Humphry Davy (1778- 1829), the English chemist.