首頁英語詞典fluorescentfluorescent的意思

      fluorescent

      英[fl??'res(?)nt;fl??-] 美[,fl?'r?snt]
      • adj. 熒光的;螢光的;發(fā)亮的
      • n. 熒光;日光燈

      詞態(tài)變化


      名詞:?fluorescence;

      助記提示


      1. flu- + -or => fluor (originally meaning "a flowing, flow").
      2. => fluor: an old chemistry term for "minerals which were readily fusible and useful as fluxes in smelting". => fluorite / fluorspar.
      3. fluorspar ("calcium fluoride," modern fluorite), name of the mineral where it was first found.
      4. fluor + -ine (chemical suffix). So named because it is isolated from fluor / fluorite.
      5. fluor + -escence (-esce + -ence). Because in fluorspar (fluorite) he first noticed the phenomenon, on analogy of phosphorescence. => "glowing in ultraviolet light".
      6. fluorescence => fluorescent.

      中文詞源


      fluorescent 發(fā)熒光的

      來自19世紀英國物理學家George Stokes, 因為他首先在氟中發(fā)現(xiàn)這種發(fā)光現(xiàn)象而命名,而并非熒光一定來自于氟。-escence, 開始的,詞源同adolescent.

      英文詞源


      fluorescent (adj.)
      1853 (Stokes), from fluor- (see fluoro-) + -escent (see fluorescence). The electric fluorescent lamp was invented by Edison in 1896, but such lights were rare in homes before improved bulbs became available in the mid-1930s.

      雙語例句


      1. Fluorescent lights flickered, and then the room was brilliantly, blindingly bright.
      熒光燈閃了幾下,接著屋子里豁然大亮,刺得人睜不開眼。

      來自柯林斯例句

      2. It was lit by hooded fluorescent lamps.
      照明用的是帶燈罩的日光燈。

      來自柯林斯例句

      3. This shop sells fluorescent paint.
      這家商店出售熒光漆.

      來自《簡明英漢詞典》

      4. With an 18-watt fluorescent bulb you get as much light but use 75% less electricity.
      用18瓦的熒光燈燈泡有同樣的亮度,而用電量卻減少75%。

      來自柯林斯例句

      5. A typical fluorescent lamp is a tube with metal electrodes at each end.
      日光燈通常是一根兩端裝有金屬電極的管子。

      來自柯林斯例句


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