衍

词组短语

low and smooth land

与衍相关的网络例句 [注：此内容来源于网络，仅供参考]

X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.

本文详细介绍了用X-射线衍射（包括X-射线小角衍射和双晶衍射）方法对Ge〓Si〓/Si超晶格结构特性测试的结果，尤其是发现，当Ge〓Si〓/Si超晶格的生长温度较低时，X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制，表明超晶格的两套界面都十分平整；当生长温度较高时，Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化，对应于超晶格内有一套界面不平整的情况；当生长温度进一步提高时，X-射线小角衍射峰明显减少，表明超晶格内两套界面都不理想。

In order to study the grating diffractive field's characteristics of the partially polarized and coherent beams, an analytic expression of polarization degree and angular correlation of partially ploarized and coherent beams through polarized gratings is derived based on the beam coherentce-polarization matrix approach of partially coherent beams.

为了研究部分偏振部分相干光光栅衍射场的衍射特性，利用部分偏振部分相干光的光束相干-偏振矩阵，推导出了部分偏振部分相干光通过任意偏振光栅后，衍射场的偏振度及场中衍射级次角相关的一般解析表达式。

As substitute for fluorite lens, a double-layer DOE is used in a long focal-length apochromatic objective lens. The modulation transfer function of this hybrid optical system is suggested for evaluating diffraction efficiency of the multilayer DOE. The results show the diffraction efficiency has a wide and symmetrical distribution in the whole waveband.

利用双层衍射光学元件替代萤石透镜校正混合光学系统的二级光谱，设计并制作了一套长焦距物镜，并利用系统调制传递函数评价了多层衍射光学元件衍射效率，测试结果表明衍射效率在整个设计波段内以较高的数值平均分布。

A rigorous coupled wave theory for the Bragg diffraction of a Gaussian beam in the uniaxial crystal is derived and a group of rigorous coupled wave equations and diffraction efficiency formula are obtained in terms of the proper coordinate transformation and Riemann method .

利用适当的坐标变换和黎曼方法建立了高斯光束在单轴晶体中布拉格衍射的严格的耦合波理论，获得了一组严格的耦合波方程和衍射效率计算公式，讨论了衍射效率随折射率调制量的关系以及波长选择性和角度选择性，同时分析了衍射效率对再现光宽度的要求。

The principle of the two dimensional acoustooptic Q switch is presented,the formulas of the diffraction efficiency and diffraction loss of the AO Q switch with normal Bragg diffraction is derived,the relationship between One dimensional and Two dimensional Bragg diffraction is analyzed.

描述了两维声光Q开关的基本原理，详细推导出正常布喇格衍射的两维声光Q开关衍射效率和衍射损耗的表达式，分析了两维布喇格衍射和一维布喇格衍射之间的关系，并给出了在驱动功率40W、光束直径5mm、光波长1。

It was illuminated that the width of the centre bright fringe decreased along with the increasing width of the rectangular aperture when the effect of the aperture on the beam couldn't be ignored,however,the width of centre bright fringe step changed with increase of the size of the aperture when the effect could be ignorable,the width of the half maximum intensity of the centre bright fringe decreased along with the accretion of the width of the aperture and then it tends to a constant.

结果表明，当光阑对光束的衍射影响明显时，光束衍射场的中央亮条纹的宽度随着光阑边长的增大而减小；当光阑对光束的衍射影响极小时，中央亮条纹的宽度随着光阑边长的增加而阶跃变化，中央亮条纹强度的半最大值宽度随着光阑边长的增大而减小；当光阑对光束衍射影响极小时，中央亮条纹半最大值宽度趋近于一定值。

It is showed that in the X-ray diffraction patterns of the interlayer solid solution Ti3Si0.9Al0.3C1.93 and Ti3Si0.8Al0.4C1.93 bulk samples,which were in-situ reactively synthesized by hot-pressing the elemental Ti,Si,Al and C mixed powders,the diffraction peaks of [00L] crystal planes are very weak,there is only a small diffraction peak belonging to the [008],and the diffraction peaks belonging...

结果发现，用热压Ti、Si、Al和C混合粉末原位反应合成的Ti3Si0.9Al0.3C1.93和Ti3Si0.8Al0.4C1.93层间固溶体块体样品的X射线衍射谱中[00L]晶面的衍射峰极其微弱，只有[008]面有一个小的衍射峰，[002]、[004]和[006]面几乎没有衍射峰存在，而该块体样品的粉末的X射线衍射谱中所有[00L]晶面的衍射峰均存在。

There ising a writer to think, loving is at a kind of felling of mind are a special spark that the men and women occasionally collide together, she produces in the fortuity, becoming in develop in the life of 衍绵 by all means.

有一位作家认为，爱是在心灵的一种感觉，是男女在一起偶尔碰撞出的一颗特殊的火花，她产生于偶然，形成于必然，在衍绵的生活中发展。

A Study on Fraunhofer Double-Slit Diffraction by Applying Simulation Technology;2. Based on Kirchhoffs theory,the approximate intensity formulas of double-slit diffraction of Gaussian Beam is derived under paraxial approximation with power series expansion methods.

依据基尔霍夫衍射理论，利用幂级数展开的方法推导出旁轴条件下高斯光束双缝衍射的近似光强计算公式，并通过数值计算对双缝衍射的基本特性进行了讨论，得出了与其他文献一致的结论，得出了高斯光束下的双缝衍射极小值点比平行光束双缝衍射的极小值点向外移，观察屏中心光能变小；光强分布可由激光斑在衍射屏处的参数调制的结论。

The camera length of electron diffraction in transmisson electron microscopy is one of the main technical parameters in designing electron microscope and the electron diffraction analysis to microcrystal sample. According to Bragg law, the formula of calculating TEM electron diffraction camera length is derived from the research on the ray path of electron diffraction images in TEM and the comparison on electron diffraction with ordinary electronic diffractometer. The difference of physical significance of electron diffraction camera length between TEM and ordinary electronic diffractometer is discussed.

透射式电子显微镜(Transmisson Electron Microcopy， TEM)中的电子衍射相机长度，是电子显微镜设计和对微晶体样品进行电子衍射分析的主要技术参数之一依据布拉格定律，经对TEM中电子衍射成像光路的探讨与研究，并通过TEM与普通电子衍射仪的电子衍射的对比分析，导出了TEM电子衍射相机长度的精确计算公式，阐述了TEM和普通电子衍射仪的电子衍射相机长度所表征的物理意义的区别。

与衍相关的网络解释 [注：此内容来源于网络，仅供参考]

Airy diffraction integral：爱里衍射积分

Airy diffraction disc 爱里衍射斑 | Airy diffraction integral 爱里衍射积分 | Airy diffraction pattern 爱里衍射图样

diffraction breakup：衍射中断

diffraction angle 衍射角 | diffraction breakup 衍射中断 | diffraction broadening 衍射增宽

circular disk diffraction：圆盘衍射

圆孔衍射 circular hole diffraction | 圆盘衍射 circular disk diffraction | 矩孔衍射 rectangular aperture diffraction

diffraction crystallography：衍射晶体学

diffraction angle 衍射角 | diffraction crystallography 衍射晶体学 | diffraction disc 衍射盘

derivatives market：衍出产物市场 / 衍生工具市场

衍出产物及危害办理文凭课程 Diploma Course in Derivatives and Risk Management | 衍出产物市场 / 衍生工具市场 derivatives market | 衍出产物市场咨询小组 Derivatives Market Consultative Panel

diffracted ray：衍射线

diffract 衍射 | diffracted ray 衍射线 | diffracted wave 衍射波

diffraction：衍射

当光线通过障碍物的其中一端时,就会出现俗称"衍射"(Diffraction)现象,光线的前进方向因而改变. Canon在2001年利用衍射光学元素内的衍射栅格改变光线前进路线,制造出多层衍射光学(Diffractive Optics,DO)镜片,并应用在EF 400mm f/4 DO IS USM镜头身上.

fraunhofer diffraction：夫琅和费衍射

一种衍射(diffraction)的形式,衍射中的光源或接收屏幕或它们二者,距衍射物距离有限,因而波前不是平面,不同于夫琅和费衍射(Fraunhofer diffraction). 这是由A.J.菲涅耳(1788-1827年)研究的. 能被氧化或在熔炉中或在内燃机中释放出有用的热或能后起变化的物质.

neutron diffract meter：中子衍射计,中子衍射仪

neutron diagnostics 中子诊断 | neutron diffract meter 中子衍射计,中子衍射仪 | neutron diffraction 中子绕射,中子衍射

diffractive：衍射

它特别强调"衍射"(diffractive)和"图像"(Image)这两个词组. 全息术(2)是被广泛认知的DOVIDS的一种. ...衍射 衍射(Diffraction)又称为绕射,波遇到障碍物或小孔后通过散射继续传播的现象. 衍射现象是波的特有现象,一切波都会发生衍射现象.