单词 | Welsbach burner |
释义 | Word Frequency Welsbach burner(ˈwɛlzbæk, German ˈvɛlsbax) noun trademark a type of gaslight in which a mantle containing thorium and cerium compounds becomes incandescent when heated by a gas flame Word origin C19: named after Carl Auer, Baron von Welsbach (1858–1929), Austrian chemist, who invented it |
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