衍射光谱

Quasi-near field spots with a profile of sharp edge and flat top can be obtained with a diffraction-weakened lens array, while the speckles imposed on the spot by beamlets interference can be smoothed by spectral dispersion.

消衍射型透镜列阵能获得边缘陡峭且顶部较平坦的准近场焦斑，光谱色散平滑则能有效地抹平焦斑内部由多光束干涉引起的细密条纹。

A chiral phase transfer catalyst, N-benzyl quinine bromide, was synthesized from natural chiral compound. And 2,5-bimethyl-4-(3-nitrobenzene)-1,4-bihydrogenation pyridine-3--4-methyl formate (viz. nitrendipine) was synthesized by this chiral phase transfer catalysis, and characterized by elemental analysis, infrared spectrum,1H nuclear magnetic resornace, and X-ray single-crystal diffraction.Key words: ammonium; chiral phase transfer catalyser; crystal structure

通过对天然手性物质进行修饰合成手性相转移催化剂N-苄基溴化奎宁，并对目标分子2，5-二甲基-4-(3-硝基苯)-1，4-二氢吡啶-3-甲酸乙酯-5-甲酸甲酯进行不对称催化合成，并通过红外光谱和核磁共振氢谱对化合物进行了表征，用X射线单晶衍射法测定了该化合物的晶体结构。

In compound 1, two independent other than dimerized copper-phenanthroline graups are fused to the oxggen atoms in the vacant site of the mono-lacunary polyanton in parallel.

该化合物分子中2个独立的非二聚体的铜－邻菲啰啉平行地与缺位多酸空穴外的氧配位键合，通过元素分析、红外光谱、热重分析和X射线单晶衍射对其结构进行了表征。

The complex fluorides were characterzed by means of X-ray powder diffraction, environmental scanning electron microscopy and fluorescence spectrometry.

运用X射线衍射、环境扫描电子显微镜和荧光光谱等测试技术对所制备产物进行了表征。

The gemological characteristics of lemon-yellow serpentine jade are studied by the conventional gemology instrument and the polarizing microscope; the Fourier transform infrared spectroscopy, ultraviolet-visible light absorption spectra, X-ray power diffraction and electron probe quantitative analysis have also been used to study the lemon-yellow serpentine jade.

通过常规的宝石学仪器和偏光显微镜来研究柠檬黄色的蛇纹石玉的宝石学性质，进一步用Fourier变换红外光谱、紫外－可见吸收光谱、X射线粉晶衍射和电子探针定量分析对柠檬黄色的蛇纹石玉进行研究，结果表明：这种柠檬黄色的蛇纹石玉主要成分为利蛇纹石，含有少量的纤蛇纹石、水镁石、橄榄石、菱镁矿等。

This paper suggests a new method for rapid and automatic measuring the spectral diffraction efficiency of gratings.

提出了一种快速自动测试光栅光谱衍射效率的新方法。

A total of fifteen metal complexes have been synthesized and characterized by means of elemental analysis, molar conductance analysis, IR, electronic spectra, EDS, X-ray powder diffraction analysis and TG-DTA analysis.

本文合成了15种金属配合物，应用元素分析、摩尔电导、红外光谱、能量色散谱、X-射线粉末衍射、热重-差热分析等手段对这些配合物进行了常规结构表征，确定了配合物的组成。

This article main research take the titanium sulfate and the iron trichloride as a raw material, take the urea as the alkali source, uses the cryochemistry method, the synthesis superfine TiO2-Fe2O3 compound photocatalyst, and has studied the sample structure and the ultraviolet receptivity with the X-ray diffraction and the ultra-violet spectrograph.

本文主要研究以硫酸钛和三氯化铁为原料，以尿素为碱源，采用低温化学方法，合成超细TiO2-Fe2O3复合氧化物，并用X射线衍射和紫外光谱研究了样品的结构和紫外吸收性能。

The CeO2 thin films were characterized by X-ray photoelectron spectroscopy and spectrometer, X-ray diffraction, Raman spectroscopy and scanning electron microscopy.

采用光电子能谱、X射线衍射、拉曼光谱和扫描电镜等测试方法表征薄膜的特性。

Gel permeation chromatography,Fourier transform infrared spectrometer,X-ray diffraction were adopted to characterize and analyze the degraded products.

用凝胶渗透色谱、傅立叶变换红外光谱和X射线衍射对降解产物进行表征分析。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。