查询词典 Bragg diffraction

Single crystal X-ray diffraction analysis reveals that the anthracene backbone adopts one of the largest end-to-end twists.

单晶结构分析揭示，其蒽核骨架的扭曲幅度在目前已有报道中属于较大的角度之一。

Small quantities of calcite was included inLuan Chuan nephrite and it has a good degree of crystallinity. X-ray powder diffraction and infrared spectrum show that the serpentine of Luan chuanconsists of fairly pure antigorite.

运用 X 射线和红外光谱对栾川软玉的分析表明，组成该地软玉的主要矿物成分为透闪石，其各项参数指标与标准透闪石十分接近，含有少量方解石，并且结晶度较好。

Alternating aperture phase shift mask is an advanced technology to enhance lithography resolution by adding phase shifters to the mask, which corrects the pattern distortion caused by diffraction of light in deep sub-wavelength lithography.

交替移相掩模是一种通过对掩模版进行相位偏移而提高光刻分辨率的先进工艺技术，用来解决深亚波长光刻下由于衍射效应引起的图形失真问题。

The diffraction method is appreciably lower than that of the spectroscopic method.

衍射法的精确度显然低于光谱法的精确度。

In this paper, operational principle and design scheme of an H(21)° mode filter are dealt with, approximate formula for determining mode coupling quantities according to Bethe's small Holes diffraction theorems is derived, and...

实验证实了理论分析和设计的正确性。波型滤波器的主波和高次波型传输特性得到了比较满意的结果。

A general formula for computing the OTF of a defocused optical system is derived from the Kirchoff diffraction integration under an approximate condition which is weaker than the Fresnel condition.

本文从基尔霍夫衍射积分公式出发，在弱于菲涅耳条件的近似下，以高斯像面的像差量及系统的离焦量为参变量，导出了便于计算离焦光学系统的OTF的普遍算式。

This research has studied the validity of vector diffraction field series solution and nonparaxial approximate solution.

本课题研究了矢量衍射场的级数解和非傍轴近似解的有效性。

The feasibility of using silk fibroin as materials for making microencapsule was investigated by preparing SF/Alginate, SF/Chitin and SF/Arabin blend films, determing their mechanical properties and testing their structure by means of X-ray diffraction and IR spectra.

本论文通过制备丝素蛋白与天然高分子材料——海藻酸钠、甲壳胺、阿拉伯树胶共混膜，测定其力学性能，同时利用X-射线衍射和红外光谱测定其结构，探讨了丝素作为微胶囊包囊材料的可行性。

Department of Scientific History and Archaeometry; Graduate University of Chinese Academy of Sciences; Beijing 100049;4.Institute of Archaeology; Chinese Academy of Social Sciences; Beijing 100710; China;The fabrication technologies in terms of phase composition,structure,firing temperature,porosity,density and water permeability of ceramic water pipes and contrastive ceramic tilesexcavated from Anyang Yin Ruins of Shang dynasty were studied by X-ray fluorescence,X-ray diffraction and dilatometer,respectively.It was found that the contents of CaO,K2O,MgO and P2O5 in CWP were relatively higher than those in contrastive CT.The difference was further confirmed by the mass ratio of flux...

采用X射线荧光、X射线衍射、热膨胀等分析手段对比研究了安阳商代陶水管的制作工艺，发现陶水管化学成分中各类熔剂的质量分数均略高于对比陶片中熔剂的质量分数，CaO、K2O、MgO等助熔剂与A l2O3的质量比进一步证实该现象，而这种差异性则外在地表现为陶水管的气孔度低于对比陶片以及陶水管热膨胀曲线中出现玻璃化现象，该结果表明陶水管原料应为一种易熔粘土，或者在沉淀粘土中人为地掺和了草木灰类掺和料，这有利于陶水管烧制与成型，有助于熔剂在熔融状态下，较好地进入陶水管中的空隙，使陶水管变得更加致密，一定程度上有利于防止陶水管的渗水，显示出陶水管制作工艺的特殊性。

The distribution of organic matter in sediments is heterogeneous. To study OM enrichment mechanism and interaction of organic matter with inorganic minerals in argillaceous sediments, we employed size grading, microscope, X-ray diffraction and gas chromatography to obtain information on OM and minerals.

在泥质沉积物颗粒分级的基础上，用显微镜检测、XRD和色谱分析等手段获取有机质和无机矿物的特征，探讨了二者间的相互关系以及有机质富集的差异性。

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。