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单词 fluorescence
释义

fluorescence /flʊə'res(ə)ns//flʊə'rɛsns/

英汉-汉英词典
n. 荧光,荧光性
词组 | 习惯用语
fluorescence spectrum 荧光光谱
fluorescence intensity 荧光强度
fluorescence analysis [化]荧光分析
fluorescence quenching 荧光猝灭,萤光淬灭
fluorescence microscopy [化]荧光显微法;[医]萤光显微镜检查
fluorescence spectrometer 萤光光谱仪;荧光分光计
fluorescence microscope 荧光显微镜
fluorescence spectrophotometer 荧光分光光度计;萤光分光光谱仪
resonance fluorescence 共振荧光
time-resolved fluorescence 时间分辨荧光
英语例句库
  1. The results of fluorescence evalution of cutinite and suberinite show th...
    煤中角质体和木栓质体的光性演化表明其对本区煤成油有一定的贡献。
  2. Intracellular F-actinwas loaded with Phalloidin-FITC and showed green fluorescence,intracellular DNA was labeled with PI and presentedred fluorescence.
    Phalloidin-FITC标记细胞内F-肌动蛋白,显示绿色荧光;PI标记细胞内DNA,显示红色荧光。
  3. Conclusion Auramine O fluorescence method is worth manipulating and popularizing in speficic stain practice.
    结论金胺O荧光染色法在病理特殊染色工作中有一定价值。
  4. At mid stage of, flavovirens fluorescence as disseminated spots were observed by fleorescence microscope.
    DNA电泳结果表明,经茚虫威0.5㎎/l处理后SL细胞中提取染色质DNA,紫外光照射下,可见染色带呈梯状排列。
  5. A newly-developed microdistribution analysis method for trace elements——synchrotron radiation X-ray fluorescence analysis is introduced.
    本文介绍了一种新型的微量元素微区分析方法——同步辐射X射线荧光分析法。
  6. Using ultraviolet spectrum, fluorescence spectrum and Fourier-transform infrared spectrum, the secondary structure of polyhedrin was studied.
    对多角体蛋白进行紫外、荧光、红外光谱分析,并通过去卷积的方法分析了该蛋白的酰胺Ⅰ带。
  7. A method for the cytochrome C-catalyzed fluorescence determination of artemisinin was developed using pyronine B(PB) as substrate.
    在细胞色素C催化下,吡啰红B与青蒿素反应导致荧光降低,细胞色素C与青蒿素的反应为酶-底物模型。
  8. The main equipment here is a thermal cycler system for nucleic acid amplification (PCR, quantitative fluorescence detection or common).
    主要仪器就是核酸扩增热循环仪(PCR仪,实时荧光或普通的)。
  9. The effect of solvent polarity and guanidinium on the con-formation of carbonic anhydrase was studied by fluorescence emission spectrum.
    紫外荧光光谱为检测手段,比较研究了溶剂极性及盐酸胍对碳酸酐酶构象的影响。
  10. Prostatitic tissue DNA fluorescence well-dismetional, cells arrange close together, three-dismetional structure is complete in single cell in Group Danpu capsule.
    丹蒲胶囊组前列腺组织DNA荧光分布均匀,细胞排列比较紧密,单个细胞三维立体结构完整。
  11. Fluorescence spectra of 5-sulfosalicyclic acid (SSA) were studied.Using quinine bisulphate as a reference, fluorescence quantum yield of SSA was measured.
    2.研究了SSA的荧光光谱,以硫酸奎宁为参比,测量了SSA的荧光量子产率。
  12. Abstract : The effect of solvent polarity and guanidinium on the con-formation of carbonic anhydrase was studied by fluorescence emission spectrum.
    摘要 : 以紫外荧光光谱为检测手段,比较研究了溶剂极性及盐酸胍对碳酸酐酶构象的影响。
  13. A method was developed for the determination of Carbaryl in water by direct injection and HPLC with coupled ultraviolet and fluorescence detectors.
    采用直接进样高效液相色谱法,以紫外检测法和荧光检测法分析水中甲萘威。
  14. A method for fluorophotometric assay of dihydrofolate reductasc (DHFR) activity by the use of fluorescence properties of dihydrofolate (DHFA) and NADPH was developed.
    摘要本文应用二氢叶酸(DHFA)和辅酶Ⅱ(NADPH)的荧光性质,建立了二氢叶酸还原酶(DHFR)活力测定的反应体系,并对酸度等反应条件进行了优化。
  15. Fluord-gold(FG) was injected into C2.Brian sections were made after 1,4 and 8 weeks to observe the survival of rubrospinal neurons under fluorescence microscope.
    荧光金(FG)于C2注射,1,4,8周脑切片,荧光显微镜下红核神经元记数观察红核神经元的存活。
  16. The urine xanthopterin levels were determined in 29 healthy men(normal group),11 patients and 34 patients with cancer by fluorescence combined with paper chromatography.
    采用荧光光度结合纸层析法测定了29例健康人、11例普通病人、23例癌症病人的尿黄蝶呤水平。
  17. Materials for sling: terylen tape, nylon tape, elastomer thread, PVC tape, etc, having processes of noctilucence, fluorescence, repercussion, jacquard weaving by computer, etc.
    涤纶带、尼龙带、高弹丝、PVC带等,并有夜光、莹光、反光、电脑提花等工艺。
  18. Methods By means of bicolour fluorescence and flow cytometry (FCM) analysis, the results were compared during different lay-out time, hemolysis time and washing time.
    方法用双抗体双色免疫荧光标记,流式细胞仪分析,对标本放置不同时间、溶血后洗涤前后的结果进行比较。
  19. The content of As and Sb in paints are analyzed by hydride generat io n atomic fluorescence spectrometry (HG-AFS) and L-cysteine prereduction proces s.
    采用氢化物发生-原子荧光光谱法,用L-半胱氨酸预还原法,对涂料中砷和锑进行了分析。
  20. Objective: To evaluate the diagnostic efficacy of the bitewing radiograph(BWR),clinic examination(CE) and laser fluorescence examination (LF) for detection of initial posterior approximal caries .
    体外评价比较平行投照的牙合翼片(BWR)、激光荧光法(LF)和模拟临床检查(CE)等3种诊断方法对早期邻面龋的诊断水平。

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原声例句
双语版 TED-Ed 演讲精选

In contrast, chlorophyll fluorescence is a direct measure of photosynthetic activity.

相比之下,叶绿素荧光能直接地测量光合作用活动。

当月 CNN 10 学生英语

The fluorescence of the particles are so strong that there's no chance you mistake the detail for the banknote.

这些颗粒的荧光分子很强劲,检测人员混淆指纹和纸币细节的可能性很小。

双语版 TED-Ed 演讲精选

Drops in chlorophyll fluorescence may also occur before visible signs of plant stress, making it a timely measure.

此外,叶绿素荧光的下降可能会发生在有植物承压的明显迹象表现出来之前,因此用叶绿素荧光测量会比较及时。

Veritasium真理元素

He's been researching scorpion fluorescence for over a decade.

他研究蝎子荧光已有十多年。

学生科学报

The team also monitored fluorescence from the coral itself.

该团队还监测了珊瑚本身的荧光

学生科学报

A few weeks after the heat stress, this red fluorescence jumped.

热应激几周后, 这种红色荧光跳跃了。

科学60秒-科学美国人 2022年8月合集

By examining pearls under a fluorescence and a scanning electron microscope, researchers discovered that the surface actually has a saw-tooth texture.

通过用荧光和扫描电子显微镜查看珍珠,研究人员发现珍珠表面真的有锯齿状结构。

Veritasium真理元素

So the idea of having a function for that fluorescence is kind of silly.

因此, 为荧光提供功能的想法有点愚蠢。

Veritasium真理元素

Fluorescence means their bodies absorb ultraviolet light and reradiate it in the visible part of the spectrum.

荧光意味着它们的身体吸收紫外线, 并在光谱的可见部分重新辐射。

科学杂志:科技

They're dipped for certain durations to allow the alga's natural fluorescent glow to remain visible under fluorescence microscopes.

它们被浸泡一定时间,让藻类的天然荧光在荧光显微镜下保持可见。

中文百科

荧光

在白光(左)与紫外线(右)下的萤石
含有奎宁的通宁水在紫外线的照射下发出荧光
长颈瓶中不同尺寸的硒化镉(CdSe)量子点在紫外线的照射下发出荧光
荧光灯

荧光(fluorescence)是一种光致冷发光现象。当某种常温物质经某种波长的入射光(通常是紫外线或X射线)照射,吸收光能后进入激发态,并且立即退激发并发出出射光(通常波长比入射光的的波长长,在可见光波段);而且一旦停止入射光,发光现象也随之立即消失。具有这种性质的出射光就被称之为荧光。一般以持续发光时间来分辨荧光或磷光,持续发光时间短于10秒的称为荧光,持续发光时间长于10秒的称为磷光。在日常生活中,人们通常广义地把各种微弱的光亮都称为荧光,而不去仔细追究和区分其发光原理。

英语百科

Fluorescence 荧光

Fluorescent minerals emit visible light when exposed to ultraviolet light
Fluorescent marine fish
Lignum nephriticum cup made from the wood of the narra tree (Pterocarpus indicus), and a flask containing its fluorescent solution
Matlaline, the fluorescent substance in the wood of the tree Eysenhardtia polystachya

Fluorescence is the emission of light by a substance that has absorbed light or other electromagnetic radiation. It is a form of luminescence. In most cases, the emitted light has a longer wavelength, and therefore lower energy, than the absorbed radiation. The most striking example of fluorescence occurs when the absorbed radiation is in the ultraviolet region of the spectrum, and thus invisible to the human eye, while the emitted light is in the visible region, which gives the fluorescent substance a distinct color that can only be seen when exposed to UV light. However, unlike phosphorescence, where the substance would continue to glow and emit light for some time after the radiation source has been turned off, fluorescent materials would cease to glow immediately upon removal of the excitation source. Hence, it is not a persistent phenomenon.

近义、反义、联想词
近义词
n.
light, visible light, visible radiation

联想词
fluorescent荧光的, 发荧光的;excitation刺激;GFP政府提供的部件;spectroscopy光谱学;microscopy显微镜学;spectra光谱;ultraviolet紫外的;analyte分析物;photon光子;wavelength波长;staining着色;
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更新时间:2025/6/17 13:08:46