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The product was characterized by means of X-ray diffraction, transmission electron microscope and Fourier transform infrared spectroscope.

采用硅烷和氨气在立式双温区流态床中化学气相沉积，制备了形状规则的球状无定形氮化硅纳米粉体，并利用X射线衍射、透射电镜和傅立叶红外研究了该纳米粉体的形貌、成分和物相。

The solid-state reaction synthesis and sintering of zirconolite and sphene were researched by thermogravimet- ric-differential scanning calorimetry analysis and X-ray diffraction analysis.

以天然锆英石为主要原料，通过配方设计，采用热重–差热、X射线衍射等分析手段，研究了钙钛锆石(CaZrTi2O7)和榍石(CaTiSiO5)的固相反应合成及烧结。

The experiments and simulations are performed by using a conical lens whose radius is 15 mm and basic angle is 1°. The experimental results are compared with the theoretical analysis and computer simulation results. The comparison indicates that the influence of eccentricity on the diffraction mode decreases as the radius of curvature of incidental spherical wave and the propagation distance decrease.

使用半径为15mm，底角为1°的圆锥透镜进行计算机仿真和实验，最后将实验结果与理论分析和仿真结果相比较，证明球面波的曲率半径和出射光束的传输距离越小，偏轴对衍射模式的影响越小。

Focusing of Gaussian beam by an apertured lens with spherical aberration is calculated,based on Huygens-Fresnel diffraction integral.

从Huygens-Fresnel衍射积分出发，计算高斯光束经过初级球差透镜聚焦之后的衍射光场。

On the other hand, focusing beyond conventional diffraction limit can be achieved by using a lens with negative spherical aberration.

利用负球差透镜在实际焦面上可获得最佳的聚焦能力。

The simulation and experiment on the diffraction property of axicon focus for spherical wave.

圆锥透镜对球面波环形聚焦特性的仿真和实验研究。

Diffraction Mode of Axicon for Tilted Spherical Wave Beam.

圆锥透镜对倾斜球面波光束的衍射模式。

The tests of small-angle light scattering and wide-angle X-ray diffraction experiments research the changes of the size of spherulite and crystalline form.

通过小角激光散射和广角X衍射实验研究了共混物的球晶尺寸和结晶形态的变化。

Their spiky appearance is due to diffraction in the astronomer's telescope.

大钉状外观是由于天文学家的望远镜的衍射而生成。

SEM and XRD(X-Ray Diffraction) analysis showed that thick claddings appeared on the surface of sponge iron after reactions in different conditions, and the main resultants were Fe3O4 and FeOOH.

而锰砂是良好的催化剂[3，4]，因此本文开展了海绵铁/锰砂填料对活性艳橙KGN染料脱色处理的实验，以及扫描电镜和X衍射分析研究海绵铁/锰砂表面化学方面的研究。

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。