refractive index
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
英汉例句
- The ratio between the speed of light in a vacuum and that in a material is known as the material's refractive index.
光在真空中的速度与在物体内速度的比率被称为物体的折射指数。 - Because shock waves represent a stark and sudden change in refractive index, they show up clearly in schlieren photographs.
因为冲击波反映了折射率的明显和突然的变化，他们能在纹影摄影中清楚地被展现出来。 - 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.
赫斯博士构想出一个画面，即一道光正穿越于一个由两种材料制作的光导纤维，一种是具有正折射指数的纤维核，另一种则是具有正折射指数的外围。 - 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
双语例句
权威例句
词组短语
- refractive -index difference 折射率差
- refractive e index 折射率
- Refractive -Index Profiling 折射率成像
- refractive index index 屈光指数
- complex refractive -index fiber 复折射率光纤
短语
英英字典
- a measure of how much a particular substance refracts light
- 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: )
剑桥英英字典
柯林斯英英字典
专业释义
- 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.
由于厚层光刻胶折射率在空间上呈缓慢变化的特点，为降低其数值计算量和编程难度，可以将厚层光刻胶近似为折射率随曝光时间变化的光栅。 - 折射指数
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况下，平均折射指数分布模式就不能满足折射误差修正的要求，必须实时实地地获取实测分布剖面。 - 折射系数
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.
所谓左手材料就是在一定的频率范围内,它具有负的介电常数和磁导率,进而具有负的折射系数,逆多普勒频移,负切连科夫辐射等一系列与常规材料不同的特性。物理学
- 折射率
- 折射指数
- 折光指数
- 折射率
- 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处的沿100／010和001晶向的折射率分别为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.
常压下测定了乙酸乙酯-异丙醇二元混合液在293.15—318.15 K下的密度和折光率,建立了该二元混合液密度与组成和温度关系的计算方程。 - 折光指数
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.
其一是采用BES和不变黄二异氰酸酯（XDI）原位聚合得到了折光指数高（1.659）、色散低（阿贝值30.1），耐冲击强度好（IPS=25～30kgcm／cm2）、密度较低（1.34g／cm3）、耐候性好的新型含硫聚氨酯光学塑料，室外放置100天颜色无变化。 - czochraski法
- 折射指数
- 折射指数
- 折射率
- 折射指数
- 折射率
- 折射率指数
- 折射率
- 折光率