结构射

If two nondiffracting beams with small difference of convergence angle and common axis exist at same time, they will interference with each other to form a light field structure that varies periodically along the propagation direction. It is a new kind of space distribution of light beam.

如果两束汇聚角略有不同的同轴无衍射光同时存在，则它们相互之间叠加干涉后产生一种纵向呈周期变化的光场结构，这是一种新的光束空间分布，这种光束在横向仍是一种同心环光斑，可用于精密对准。

In order to find an efficient way to enrich the silicon dioxide(SiO2) in straw, cornstalk was taken as an example. In this research, a new process consisting of steam-explosion, carding, sifting was employed to fractionize the cornstalk, followed by the quantitative analysis of silicon dioxide of the different parts of cornstalk.

为了研究秸秆中SiO2的富集方法，该文以玉米秸秆为研究对象，利用汽爆、梳理加筛分的方式对秸秆进行分级处理，并采用重量法、扫描电镜和X-射线衍射等技术对分级前后秸秆中二氧化硅的含量、迁移规律以及结构变化进行了分析。

The electrolysis corrosion rates in the cryolite molten salt under different current densities were measured and the corrosion mechanism was preliminarily discussed.

用X射线衍射和扫描电子显微镜对材料的组成和微观结构进行了研究，测量了样品在冰晶石熔盐中不同电流密度下的电解腐蚀速率，并对其腐蚀机理作了初步探讨。

And by IR, TGA and X-ray diffraction on the crystal structure and properties were characterized and studied.

并且通过IR、TGA和X-射线单晶衍射对晶体结构和性质进行了表征和研究。

The structure of the complex was determined by single crystal X-ray diffraction.

对该配合物的单晶进行了X-射线衍射分析，确定了结构。

The structure of the crystal was analyzed by X-ray diffraction.

通过X射线衍射仪对晶体样品的微观结构进行了分析。

The structure of 12 was confirmed by X-ray single crystal diffraction analysis.

化合物12的结构经单晶X射线衍射分析确证。

Single crystals of compounds 1, 2 and 3 were grown and their crystal structures were determined by a single crystal diffraction technique.

培养了化合物1， 2， 3的单晶，并用X射线衍射法测定了它们的晶体结构。

The crystal structure of DMNS20 was analyzed by single crystal X-ray diffraction.

培养了DMNS2O的单晶，用X射线衍射测试了其结构。

And by IR, TGA, fluorescence spectroscopy and X-ray diffraction on the crystal structure and properties were characterized and studied.

并且通过IR、TGA、荧光光谱分析和X-射线单晶衍射对晶体结构和性质进行了表征和研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷