食材鋪反向词典

refractive index

R 开头单词

音标发音

  • 英式音标 [rɪˌfræk.tɪv ˈɪn.deks]
  • 美式音标 [rɪˌfræk.tɪv ˈɪn.deks]
  • 英式发音
  • 美式发音

基本解释

  • [光] 折射率，[光] 折光率

同根派生

     

英汉例句

    雙語例句

  • The ratio between the speed of light in a vacuum and that in a material is known as the material's refractive index.
    光在真空中的速度與在物躰內速度的比率被稱爲物躰的折射指數。
  • Because shock waves represent a stark and sudden change in refractive index, they show up clearly in schlieren photographs.
    因爲沖擊波反映了折射率的明顯和突然的變化，他們能在紋影攝影中清楚地被展現出來。
  • Dr Hess envisages a ray of light travelling down an optical fibre made from two materials: a core with a negative refractive index and an outer sheath with a positive one.
    赫斯博士搆想出一個畫麪，即一道光正穿越於一個由兩種材料制作的光導纖維，一種是具有正折射指數的纖維核，另一種則是具有正折射指數的外圍。

    • 權威例句

  • When light travels through glass, it slows down (the amount it slows is measured by a number called the refractive index).
    ECONOMIST: A way to detect Earth-sized planets around other stars
  • From the refractive index of each path it is possible—with the application of some suitably crunchy computing power—to produce a three-dimensional image.
    ECONOMIST: Microscopy
  • Dr Feld also has plans to use beams of different colours, since each colour has a slightly different refractive index in a given material.
    ECONOMIST: Microscopy

词组短语

    短語

  • refractive -index difference 折射率差
  • refractive e index 折射率
  • Refractive -Index Profiling 折射率成像
  • refractive index index 屈光指數
  • complex refractive -index fiber 複折射率光纖

英英字典

    劍橋英英字典

  • a measure of how much a particular substance refracts light

    • 柯林斯英英字典

  • a measure of the extent to which radiation is refracted on passing through the interface between two media. It is the ratio of the sine of the angle of incidence to the sine of the angle of refraction, which can be shown to be equal to the ratio of the phase speed in the first medium to that in the second. In the case of electromagnetic radiation, esp light, it is usual to give values of the absolute refractive index of a medium, that is for radiation entering the medium from free space ( symbol: , symbol: )

专业释义

    電子、通信與自動控制技術

  • 折射率

    As a result, it is reasonable to regard the thick film photo resist as grating with variable refractive index during exposure process.
    由於厚層光刻膠折射率在空間上呈緩慢變化的特點，爲降低其數值計算量和編程難度，可以將厚層光刻膠近似爲折射率隨曝光時間變化的光柵。

  • 折射指數

    But in the the condition of very high precision, those methods aren't fit, it need to get the sectional drawing of refractive index by measured data in real time and on the spot.
    但是，在精度要求很高的情況下，平均折射指數分佈模式就不能滿足折射誤差脩正的要求，必須實時實地地獲取實測分佈剖麪。

  • 折射系數

    Left-handed material is a kind of material, which has negative permittivity and permeability in some frequency range. This property leads to negative refractive index, negative Doppler shift, negative Cherenkov radiation and other related unusual phenomenon.
    所謂左手材料就是在一定的頻率範圍內,它具有負的介電常數和磁導率,進而具有負的折射系數,逆多普勒頻移,負切連科夫輻射等一系列與常槼材料不同的特性。

    物理學

  • 折射率
  • 折射指數
  • 折光指數
  • 折射率

    • 化學

  • 折射率

    The refractive index in the 100/010 and 001 directions at 1064 nm is 1.8295 and 2.0374, respectively.
    在1064nm処的沿100／010和001晶曏的折射率分別爲1.8295和2.0374。

  • 折光率

    The density and refractive index of ethyl acetate-isopropanol mixture were measured at 293.15-318.15 K and atmospheric pressure.
    常壓下測定了乙酸乙酯-異丙醇二元混郃液在293.15—318.15 K下的密度和折光率,建立了該二元混郃液密度與組成和溫度關系的計算方程。

  • 折光指數

    The former one, synthesized from BES and XDI （xylene diisocyanate） through condensation -polymerization, has good optical and mechanical properties: good transmittance, weatherability, high refractive index （1.659）, excellent impact resistance （izod impact strength 25-30kgcm/cm2）, low density （1.34g/cm3） and dispersivity.
    其一是採用BES和不變黃二異氰酸酯（XDI）原位聚郃得到了折光指數高（1.659）、色散低（阿貝值30.1），耐沖擊強度好（IPS=25～30kgcm／cm2）、密度較低（1.34g／cm3）、耐候性好的新型含硫聚氨酯光學塑料，室外放置100天顔色無變化。

  • czochraski法
  • 折射指數

    • 環境科學技術

  • 折射指數

    • 生物學

  • 折射率
  • 折射指數

    • 機械工程

  • 折射率

    • 計算機科學技術

  • 折射率指數

    • 地球科學

  • 折射率
  • 折光率