fluorescence
英 [fl??'res(?)ns; fl??-]
美[fl??'r?sns]
- n. 熒光；熒光性
低頻詞暢通詞匯
詞態(tài)變化
形容詞:?fluorescent;
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.
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.
英文詞源
- 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.
雙語例句
- 1. In X - ray fluorescence, pieces of the filter are used directly.
- 在 X 射線熒光法中, 可直接使用濾紙.
來自辭典例句
- 2. The dashboard itself is divided into three vacuum Fluorescence Displays.
- 儀表板本身化分為三個真空熒光顯示器.
來自辭典例句
- 3. In many atomic fluorescence applications a non - dispersive optical system may be used.
- 在許多原子熒光法的應用中,可以采用 非 分散的光學系統(tǒng).
來自辭典例句
- 4. All the overhead fluorescence was on.
- 頭頂上的熒光燈全都打開了.
來自辭典例句
- 5. Fluorescence is high in shallow immature samples and decreases in the main zone of oil generation.
- 淺處未成熟樣品的熒光是高位,而主要生油帶則降低.
來自辭典例句