首页英语词典fluorescencefluorescence的意思

fluorescence

英 [flʊə'res(ə)ns; flɔː-] 美[flʊə'rɛsns]
  • n. 荧光;荧光性

低频词畅通词汇

词态变化


形容词: fluorescent;

助记提示


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.

英文词源


fluorescence (n.)
1852, "property of glowing in ultraviolet light," coined by English mathematician and physicist Sir George G. Stokes (1819-1903) from fluorspar (see fluorine), because in it he first noticed the phenomenon, + -escence, on analogy of phosphorescence.

双语例句


1. In X - ray fluorescence, pieces of the filter are used directly.
在 X 射线荧光法中, 可直接使用滤纸.

来自辞典例句

2. The dashboard itself is divided into three vacuum Fluorescence Displays.
仪表板本身化分为三个真空荧光显示器.

来自辞典例句

3. In many atomic fluorescence applications a non - dispersive optical system may be used.
在许多原子荧光法的应用中,可以采用 非 分散的光学系统.

来自辞典例句

4. All the overhead fluorescence was on.
头顶上的荧光灯全都打开了.

来自辞典例句

5. Fluorescence is high in shallow immature samples and decreases in the main zone of oil generation.
浅处未成熟样品的荧光是高位,而主要生油带则降低.

来自辞典例句