查询词典 diffraction

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。

The changes of morphology and mass in the process of pretreatment,the morphology and the phase constitution of chemical conversion film formed by stannate were studied using scanning electron microscope,X-ray diffraction and the mass loss method.

利用扫描电镜、X射线衍射和质量损失等手段，研究预处理前后的表面形貌及质量变化和锡酸盐化学转化膜层表面形貌及其相组成，采用盐雾和湿热实验箱检验膜层的抗腐蚀性能。

The changes of morphology and mass in the process of pretreatment, the morphology and the phase constitution of chemical conversion film formed by stannate were studied using scanning electron microscope, X-ray diffraction and the mass loss method. The corrosion resistance of film were studied by salt spay test and damp test.

利用扫描电镜、X射线衍射和质量损失等手段，研究预处理前后的表面形貌及质量变化和锡酸盐化学转化膜层表面形貌及其相组成，采用盐雾和湿热实验箱检验膜层的抗腐蚀性能。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。