光反射

In this paper a theoretical discussion of the optical design and the thermal performance of receiver pipe of the hibrid type concentrating collector was given. This collector consists of Fresnel reflector and heliostats.

本文着重从理论上讨论由菲涅耳反射镜和平面镜组成的混合式聚光集热器系统的光学设计及其集热管的热力学计算。

It composed of conventional wedge-type optical isolator, lens and mirror.

由传统的楔形光隔离器、透镜和反射镜构成。

Rresults from those studies can be summariazed as follow:(1) A preliminary study no correlationship between the UV-VIS reflection spectrum of tomato fruit surface and the lycopene amount of tomato fruit was undertaken. Based on observation from this study, a damage-free and in-situ detection technique of lycopene amount from tomato was developed with UV-VIS reflection spectroscopy;(2) The geometrical isomers of lycopene were separated successfully on C30-HPLC-PDA-ELSD. The absorption coefficients of Z-isomers were consequently dedermined. The geometrical isomer composition of lycopene could therefore be assessed. Those efforts formed a solid base to identify the natural product from synthetic compound of lycopene;(3) Lycopene resource from the fruit of Autumn oliver was proved to be available for industrial application. An extraction methos of lycopene from the fruit of Autumn oliver by supercritical carbon dioxide was developed at laboratory scale;(4) A method to extract lycopene by supercritical liquid with improved efficiency was developed; Data from this investigation suggested that a proper raw material pre-extraction process was important for a better extraction efficiency;(5) Variation in the geometrical isomer composition of lycopene during its metabolish in rat was assessed. A large amount of Z-isomers were observed. This variation took place in serum;(6) The absorption rate and accumulation in serum of natural lycopene in rat were assessed;(7) Ability to quench singlet oxygen by different geometrical isomers of lycopene was compared;(8) It was detected that whether natural lycopene had functions to regule blood-lipids and LDL antioxidation;(9) A C31 degradation piece of lycopene was found in the prostate gland of rat.

研究结果包括：[1]应用UV-VIS反射光谱法建立了番茄果实中番茄红素含量的无损伤、现场检测技术；[2]应用C30-HPLC-PDA-ELSD技术实现了对番茄红素几何异构体的分离，测定了不同顺式异构体的吸光系数，建立了天然番茄红素几何异构体组成的检测方法，为区分和鉴定人工合成品和天然产物奠定了基础；[3]证实了秋橄榄果实中的番茄红素资源具有工业开发价值，并建立了超临界CO_2萃取的实验室方法；[4]探索了提高番茄红素超临界流体萃取效率的方法，证明了物料前处理对提高萃取效率起了极其重要的作用；[5]观察了番茄红素在大鼠体内几何异构体组成的变化情况，发现了大量顺式异构体的存在，并证实了几何异构体组成在血清中发生了显著变化；[6]测定了天然番茄红素在大鼠体内的吸收率和在大鼠血清中的动态积累规律；[7]比较了不同番茄红素几何异构体淬灭单线态氧的能力；[8]检测了天然番茄红素是否具有调节血脂作用和抗低密度脂蛋白氧化的功能；[9]首次发现大鼠前列腺内存在番茄红素C31降解片段，并证实其仍具有淬灭单线态氧的能力。

The team'***planation is that the outer ring is made of very fine water ice particles, mostly less than a tenth of a micrometre across.

这些水冰屑都太细小，无法散射长波红外线，却能够反射可见光，特别是光谱中波长较短的蓝光。

Moon reflects the ray of sun.

月亮反射太阳的光。

It is the influence to include the dihedral angel windages, the surface unflatness and the reflect-surface characteristic on the far-field diffraction energy distribution.

介绍了卫星激光角反射器的远场衍射光强研究，包括二面角偏差、表面不平度和反射面特性对远场衍射能量分布的影响。

There, it will form sulphates that reflect a fraction of the incident sunlight, resulting in a net reduction in global temperatures.

这样，二氧化硫会形成硫酸盐，反射一小部分入射光，生成一张网减少全球温度。

Although skylights generate a nice ambience in 3dsMax, they will also ruin your normal map.

尽管天空光会产生一个好的漫反射效果但它们也能破坏你的法线贴图。

A light source with reflectors that projects a beam of light in a particular direction.

装有能投射到某一特定方向一束光的反射镜的灯。

These are joined on an optical axis, each with its own lens, filters, and reflectors.

两套系统连接在一个光学轴上，具有各自的透镜、滤光器、以及反射镜。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。