反射

Secondly, based on the syntony frequency and the elasticity mechanics and other correlative professional knowledge, establishes a suit of FSM vibration module system, selects the structure, material and the process and treatment technique of the elastic element in the elastic system of the mirror, analyzes a lot of factors which affect the structure of the rapid controlling reflector and provides the derivation formula.

以谐振频率为出发点，利用弹性力学等相关专业知识，建立一套FSM的振动模块系统；确立了反射镜弹性系统中弹性元件的结构、材料的选择，及加工，热处理。分析了影响快速控制反射镜结构的诸多因素，给出其相关推导公式，最后应用SOLID EDGE和COSMOS软件对该结构进行了计算机仿真。

Injection Mold making for Car head lamp, Car tail lamp, Car corner lamp, Car fog lamp, Auto LED light, Car accessories, TFT LCD light guiding board, L...

汽车车灯，汽车灯壳，反射镜，复反射镜，汽车零组件，LCD背光板，LCD TV CASE，3C产品，中。。。

Geometric optical theory and the tessellate scheme were used to develop an algorithm for creating virtual optical-mapping objects for both reflections and refractions that can render specular reflections and refractions in object space.

为了提高视点相关的镜面反射现象的绘制速度和绘制质量，提出了计算任意曲面反射光学映射虚物体的方法。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

When it approaches the triangular limit ,the non-diagonal reflection matrix of triangular statistical model is obtained.

本文得到了ZnBelavin模型反射矩阵的矩阵元表达式，在退化到三角极限后，得到了非对角的三角统计模型的反射矩阵。

In the case of irregular reflection,numerical solution can get reflectedwaves of shock type and determine the triple point with certain accuracy.

在非正规反射的情形，数值解都能得到激波类型的反射波，并以一定的精度确定三波点。

Since the forbidden bands can appear in ranges above ultra-violet frequencies,superlattice may become a good reflectorof ultraviolet light or waves of even higher frequencies.

所得结论是：极化激元呈现为能带，在禁带内电磁波不能传播，因而将完全被材料反射，由于禁带可以出现在紫外以上的频率区间，故超晶格有可能作为紫外甚至更高频率电磁波的反射器件。

The driver circuit of CCD is realized by CPLD (Complex Programmable Logic Device). In the multi-functions spectroscope's optical system, ring-shape aperture illuminates is used to reduce the sample's undersurface's reflection, then enhance the measurement precision of the reflectivity.

CCD的驱动时序电路通过可编程逻辑器件CPLD来实现，多功能光谱仪的光学系统中采用环形照明技术来减少玻璃样品下表面的反射，从而提高玻璃样品反射率的测量精度。

This project is to study mainly some problems in the harmonic analysis on the unit sphere with reflection-invariant measures, and others associated with reflcetion-symmetry.

本项目主要研究了球面上带有反射不变测度的调和分析问题和其它与反射对称有关的问题。

Unobscured all-reflective system This dissertation details the unobscured all-reflective telescopes with two or three mirrors.

离轴反射系统研究本文对离轴两镜和三镜反射系统作了全面的研究。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。