Word · Frequency #26665
fluorescences
荧光；荧光性
fluorescences is the plural of fluorescence.
light emitted when a substance absorbs radiation of a different, often invisible, wavelength
- 1.
The emission of light (or other electromagnetic radiation) by a material when stimulated by the absorption of radiation or of a subatomic particle.
材料在吸收辐射或亚原子粒子的激发下发出光(或其他电磁辐射)的现象。
- 2.
light emitted during absorption of radiation of some other (invisible) wavelength
在吸收其他(不可见)波长的辐射时发出的光。
- 3.
The light so emitted.
如此发出的光。
材料在吸收辐射或亚原子粒子的激发下发出光(或其他电磁辐射)的现象。；在吸收其他(不可见)波长的辐射时发出的光。；如此发出的光。；荧光；发荧光
In use
The mineral glowed with a bright green fluorescence under the ultraviolet lamp.
Scientists use fluorescence to detect proteins in a cell.
The microscope image revealed the fluorescence of the stained bacteria.
the fluorescence of [something]
the fluorescence of 后接产生荧光的物质或物体，用于说明荧光来源。
The fluorescence of the mineral is caused by impurities.
这种矿物的荧光是由杂质引起的。
fluorescence from [source]
from 强调荧光发射的来源，常用于科学测量场景。
We measured fluorescence from the quantum dots.
我们测量了来自量子点的荧光。
fluorescence [noun]
fluorescence 可直接用作定语修饰名词，构成复合名词，如 fluorescence microscope、fluorescence spectroscopy。
Connections
Collocations
- X-ray fluorescence
- X射线荧光
- X-ray fluorescence is widely used to determine the elemental composition of materials.X射线荧光被广泛用于确定材料的元素组成。
- fluorescence microscopy
- 荧光显微术
- Fluorescence microscopy lets researchers observe specific structures inside living cells.荧光显微术让研究人员能够观察活细胞内的特定结构。
- fluorescence spectroscopy
- 荧光光谱法
- Fluorescence spectroscopy can reveal changes in the molecular environment of a sample.荧光光谱法可以揭示样品分子环境的变化。
- fluorescence in situ hybridization
- 荧光原位杂交
- Fluorescence in situ hybridization is used to locate specific genes on chromosomes.荧光原位杂交用于在染色体上定位特定基因。
- fluorescence lifetime
- 荧光寿命
- The fluorescence lifetime of the probe was measured under different conditions.
Learner notes
Memory Tip
荧光（fluorescence）里藏着“flu”和“rescence”，联想紫外线一照，荧光物质就发出亮光。
Context & Register
语域：formal 常见场景：科研论文、化学/物理教材、技术文档 fluorescence 是比较正式的科技词汇，通常出现在学术文章、教科书或技术说明中，日常生活口语里比较少见。
Pronunciation & Spelling
这些词都以 -escence 结尾，重读音节为 /ˈrɛsəns/，与 fluorescence /ˌfluəˈrɛsəns/ 押韵。注意 fluorescent /ˌflʊəˈrɛsənt/ 拼写相近但结尾是 /ənt/，不押韵；fluoresce /ˌflʊəˈrɛs/ 也不押韵。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.