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单词 fluorescence
释义
fluorescentfluorescent /flʊˈrɛsənt, flɔ-/ adjective Etymology 1fluorescent colors are very bright:  a fluorescent pink T-shirt2fluorescent light/lamp science a light that contains a gas-filled tube that produces a very bright light when electricity is passed through it3science, physics a fluorescent substance produces light when hit by electrons or radiation [Origin: 1800–1900 fluorspar, type of fluorescent mineral (18–21 centuries), from Modern Latin fluor mineral used for melting]fluorescence noun [uncountable]
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更新时间:2024/11/11 17:54:26