查询词典 diffraction angle

A simulation model of diffraction on Focal Plane Array imaging is established based on Fraunhofer diffraction algorithm. The effect of diffraction between two units on FPA in different distance is cal-culated by using Matlab.

采用夫朗和费衍射计算公式，建立了红外焦平面阵列成像衍射仿真模型，并用Matlab软件对不同距离探测像元之间的衍射影响进行了仿真。

X-ray diffraction, reflection high energy electron diffraction and Phi scan of grazing incidence X-ray diffraction with synchrotron radiation were employed to investigate the structure properties of ZnO thin film.

利用X射线衍射，反射式高能电子衍射和同步辐射掠入射X射线衍射φ扫描等实验技术研究了ZnO薄膜的结构。

TE mode diffraction characteristics of surface-relief grating having different symmetrical profiles (rectangular, sinusoidal, triangle, trapezoidal profile) are calculated with rigorous second order vector couple-wave theory, the law of diffraction efficiency as a function of grating groove depth are analyzed: in a specific condition, diffraction efficiency might be close to 100%.

本论文采用严格的二阶矢量耦合波理论计算了矩形、正弦、三角形、梯形等对称面形蚀刻光栅的TE模偏振的衍射特性，分析了光栅的衍射效率随着沟槽深度变化规律。

The phase constitution and structure of a partially stabilized Zirconia with yttria and magnesia have been investigated by means of electron diffraction, diffraction contrast image, X-ray diffraction and image simulation.

通过透射电子显微术、X射线衍射和电子计算机图像模拟等手段、对由Y〓O〓和MgO复合稳定的ZrO〓陶瓷—-PSZ的相组成和相结构进行了观察测定。在此基础上，对电子衍射谱中的漫散射现象进行了系统、细致的研究。

In addition, molecular orientation behaviors induced by shearing, electric field and magnetic field were investigated. The space group of the monomers A3EO7 and A9EO7 were determined as P2〓2〓2 and P112/m by means of electron diffraction and X-ray diffraction. Liquid crystalline properties of the monomer and the polymer were studied using DSC, variable X-ray diffraction, TEM and polarized optical microscope. Both monomers exhibit monotropic liquid crystalline behavior, and they also give a metastable phase on the cooling process. The polymer PA9EO7 shows enantiotropic liquid crystalline properties. Thus the rigid polymer backbone is not a fatal defect that completely distorts the packing arrangement of the mesogenic moiety in the side chain liquid crystalline polyacetylene.

结合电子衍射倾转方法和粉末X射线衍射技术，确定了两个液晶小分子A3EO7和A9EO7的晶胞参数和空间群，采用Cerius〓模拟软件，运用分子模拟的方法给出了小分子在晶胞中的排列方式；利用DSC、变温X射线衍射技术和透射电子显微镜研究了小分子和聚合物的液晶态，单体A3EO7和A9EO7表现出单向液晶性质，并且在降温过程中都表现出一个亚稳液晶相或亚稳结晶相，聚合物PA9EO7具有双向液晶性；采用偏光显微镜和X射线平板照相技术，研究了剪切和电场对聚合物分子取向的影响，在不同的液晶态，剪切作用对聚合物PA9EO7具有不同的诱导取向结果，直流电场可以诱导聚合物联苯液晶基元沿施加电场方向取向。

As walk-off angle and acceptance angle of beam limit the conversion efficiency and the tunable wavelength range of difference frequency generation, research include effective nonlinear coefficient, walk-off angle and acceptance angle as functions of wavelength, the relationship between conversion efficiency and acceptance angle, and the impact of crystals length on the process of frequency conversion.

由于光束的走离角、允许角限制了转换效率和差频调谐波长范围，研究内容还涉及了有效非线性系数、走离角和允许角与波长的关系，转换效率与允许角的关系，以及晶体长度在频率变换过程中产生的影响。

Based on force diagram an analytical expression between some factors and splaying angle of the bar is brought forward, pointing out that splaying angle of the bar should be 2 3 degrees, and slitting angle should be 30 degrees approximately, outboard slant angle on the slitting groove should be 45 50 degrees and bite angle should be 7 8 degrees.

为稳定小规格带肋钢筋的三线切分轧制，对涉及棒材张开角的切分孔孔型诸角度进行了分析，通过对轧件受力状态的讨论，提出了诸因素与棒材张开角之间的解析式，指出满足三线切分稳定轧制时的棒材张开角应为 2°～ 3°，相应的孔型切分角为 30°左右，孔型外侧壁倾角应在 4 5°～ 5 0°之间，咬入角可控制在 7°～ 8°之间等。

Under the vertical load, the strength of rock mass is higher when there is only one group of joint and the dip angle is less than 20 or higher than 80; When dip angle is between 20 to 80, the strength of rock mass is much lower, it is smallest when dip angle is about 50, and it is lower when this kind of dip angle is in combination with other angle.

7在铅直向荷载作用下，岩体中只存在一组倾角小于20°或者大于80°时，岩体的强度相对较高；当岩体中存在一组节理的倾角在20°～80°间时，岩体的强度值很小，而且在与其他倾角的节理组合时，岩体的的强度值变化不太大，特别是当节理倾角为50°左右的时候，岩体的强度相对最低。

Exterior Opposite Angle Area : According to one angle area of the triangle, if we extend the two angle lines to the opposite direction, the area formed by the extending lines which like mirror area to the original angle is called here Exterior Opposite Angle Area.

外部对角映射区：针对三角形的一个角，将构成该角的两条相邻线段进行对角方向的虚线，这两条虚线围成的区域就是该三角形一个角的外部对角映射区。

Exterior Opposite Angle Area: According to one angle area of the triangle, if we extend the two angle lines to the opposite direction, the area formed by the extending lines which like mirror area to the original angle is called here Exterior Opposite Angle Area.

外部对角映射区：针对三角形的一个角，将构成该角的两条相邻线段进行对角方外部对角映射区向的虚线，这两条虚线围成的区域就是该三角形一个角的外部对角映射区。

Continuously improve the production mechanism, to provide customers with better quality products and services.

不断的完善生产机制，给客户提供更优质的产品及服务。

B:Yes, he was the very prize-winner in the court tennis ten years ago?

是的，他是十年前的世界网球冠军。