| 单词 | welsbach mantle |
| 释义 | Welsbach mantleWelsbach mantleWelsbach mantleWelsbach mantleorWelsbach burner[for C. A. von WelsbachWelsbach, Carl Auer, Baron von, 1858–1929, Austrian chemist. He discovered the rare earth elements neodymium and praseodymium (1885) and lutetium (c.1908, independently of the French chemist Georges Urbain). He is known also for the invention of the Welsbach mantle. ..... Click the link for more information. ], cylindrical framework of gauze impregnated with oxides of thorium and cerium. When heated in a gas flame, it produces a very bright light because of the incandescence of the oxides. It is now used in outdoor and camp lamps. |
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