查询词典 mirror reflection

The off-axis reflection system composed of four aspheric mirrors was designed, but the system structure was not so simple and the performance can also be improved, besides, manufacture and test for large aspheric mirrors are difficult; and then the spherical Fresnel mirror which is easier to be manufactured and tested was used to replace the aspheric mirror, the spherical Fresnel mirror has low cost of replication, but this design also can\'t be used in projection lens because it was only feasible in narrow wavebands; Furthermore, the design making use of catadioptric projection lens was accomplished, this design is greatly applied in rear projector because it has merits of both refraction and reflection. But it had difficulties in color aberration correction and had complex structure.

设计了四片非球面组成的离轴式反射系统，然而，仅采用非球面设计系统结构不够精简，性能也有待进一步提高，且非球面面形较大时加工和检测都存在一定的困难；继而提出了用球面Fresnel反射镜代替非球面的设计方法，虽然Fresnel反射镜加工和检测更为简单，且复制成本低，但对波长具有选择性；进而，应用折反系统结合的方式设计了离轴式投影镜头，该方法因兼具折射和反射的优点，在大屏幕超薄背投系统的设计中广为应用，缺点是会产生难以校正的色差，且结构复杂。

On strength computation,the finite element models of rotating mirror were established according to the real structure of the mirror,and the rotating three-faced beryllium mirror were analysed.Results display that the surface deformation magnitude of the mirror is approximately 0.334 6 μm,and the maximum stress is 0.204 GPa at 600 m/s of edge linear speeed.The regions of maximum stress are on the axial hole and symmetric to symmetrical planes of mirror body,and keep beelines to surfaces.On the modal analysis,the results show that the first and second modals of bending vibration exist around 3.4×105 r/min and 6.6×105 r/min,which appear binate and orthogonal respectively,and another modal belongs to the first torsional vibration that occurs by 5.13×105 r/min.

运用该方法得出转镜镜面变形量、内部应力分布和振动模态参量的定量数值：在边缘线速度600 m/s下，三面体铍转镜的最大变形量为约0.334 6 μm；最大应力0.204 GPa，位于轴孔附近并与镜面距离最短处；两个在互相垂直平面内的一阶弯曲振动模态发生在3.4×105 r/min附近，一阶扭振点位于5.13×105 r/min附近，两个二阶弯曲振动点位于6.6×105 r/min附近。

In the analysis of the frequent spectrum and the reflection coefficients, based on Godas two-points method which fit to the normal incident wave, a modified two-points method is derived that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves from which the frequent spectra of incident waves and reflected waves incoming in arbitrary angular, the bulk reflection coefficient and the frequent spectrum of reflection coefficient could be computed, also from which in theory the waves could be measured in two wave gauges which is disposed at any direction.

为了分析单向不规则波入射波的频率谱和反射系数，本文在Goda用于分析正向不规则波的两点法的基础上，提出了可用于斜向不规则波频谱分离及其反射系数计算的改进两点法，该方法可用于计算任意波浪入射角的入、反射波谱、总体反射系数和反射系数的频率谱，并且测量波浪过程的两浪高仪可在较广的方向范围内布置。

In the analysis of the frequent spectrum and the reflection coefficients, based on Goda's two-points method which fit to the normal incident wave, a modified two-points method is derived that can be used to calculate the frequent spectrum and reflection coefficient of the oblique waves from which the frequent spectra of incident waves and reflected waves incoming in arbitrary angular, the bulk reflection coefficient and the frequent spectrum of reflection coefficient could be computed, also from which in theory the waves could be measured in two wave gauges which is disposed at any direction.

为了分析单向不规则波入射波的频率谱和反射系数，本文在Goda用于分析正向不规则波的两点法的基础上，提出了可用于斜向不规则波频谱分离及其反射系数计算的改进两点法，该方法可用于计算任意波浪入射角的入、反射波谱、总体反射系数和反射系数的频率谱，并且测量波浪过程的两浪高仪可在较广的方向范围内布置。

Goodbye Alice in Wonderland Jewel It's four in the afternoon I'm on a flight leaving L.A. Trying to think about my life My youth scattered along the highway Hotel rooms and headlines I've made a living with a song Just a guitar as my companion Wanting desperately to belong Fame is filled with spoiled children They grow fat on fantasy I guess that's why I'm leaving I crave reality So goodbye Alice in Wonderland Goodbye yellow brick road There is a difference between dreaming and pretending I did not find paradise It was only a reflection of my lonely mind searching For what was missing in my life I'm embarassed to say the rest is a rock and roll cliche I hit the bottom when I reached the top I never knew it was you who was breaking my heart I thought you had to love me You did not Yes a heart can hallucinate If it's completely starved for love Can even make monsters seem like Angels from above You forged my love like a weapon And turned it against me like a knife You broke my last heartstring But you opened up my eyes So goodbye Alice in Wonderland Goodbye yellow brick road There is a difference between dreaming and pretending That was not love in your eyes It was only a reflection of my lonely mind wanting what was missing in my life And growing up is not the absence of dreaming It's being able to understand the difference between the ones you can hold And the ones that you've been sold Dreaming is a good thing cause it brings new things to life Pretending is an ending that perpetuates a lie Forgetting what you are Seeing for what you've been told Well, truth is stranger than fiction And this is my chance to get it right Life is much better without all of your pretty lies So Goodbye Alice in Wonderland You can keep your yellow brick road there is a difference between dreaming and pretending There's not tears in my eyes It was only a reflection of my lonely mind searching It was only a reflection of my lonely mind finding I find what's missing in my life

再见，梦游仙境的爱丽丝下午四点我在飞离洛杉矶的班机上试着去理顺生活我的青春散落在公路上就宿于各地旅馆，无数次登上头条我以一首歌成功立足吉他为伴我强烈渴望被接受和认可有名的人大多是被宠坏的孩子幻想使我们贪求无餍我猜想这就是我离开的原因我渴望活在现实里因此再见吧，梦游仙境的爱丽丝再见吧，黄砖路梦想和矫饰不同我没有找到天堂那不过是我孤独心灵的一种反映，我渴望找到生命中缺失的东西尽管尴尬，我不得不说一句摇滚乐界的陈词滥调当我的事业达到顶峰时，我的心情跌落到了谷底我从未想过，会是你让我心碎我以为你一定会爱我但你没有是的，如果心对爱饥渴它会产生幻觉，认假为真它甚至可以把妖魔认作下凡的天使你把我的爱练成一种武器然后把它像刀子一样捅向我你断了我最后一根心弦但你让我看清了现实因此再见吧，梦游仙境的爱丽丝再见吧，黄砖路梦想和矫饰不同你眼里的不是爱不过是我孤独心灵的一种反映，我努力寻找生命中缺失的东西成长不是梦想的消失而是一种能分辨你坚守的东西与导致你被骗的东西的能力并且梦想是个好东西因为它给生命带来新鲜事物但矫饰是一个终结它使谎言无限期地延续忘了你是谁只着眼于人们告诉你的那些东西真实比虚构更奇怪而这是我求取真实的机会没有那些漂亮的谎言，生活会变得更美好因此再见吧，梦游仙境的爱丽丝你可以留住你的黄砖路梦想和矫饰不同我眼里的不是泪水不过是我孤独心灵的一种反映，我意识到不过是我孤独心灵的一种反映，我意识到我已经找到了生命中缺失的东西

The reflection interface function is diverse, provides the ultra link reflection majority, namely can realize the plot reflection, like selects the building, the open area to form the architectural plane reflection chart.

映象接口功能多样，大部分都提供超链接映象，即能实现小区映象，如选中建筑物、空地形成建筑平面映象图。

Based on the basic principle of reflection and transmission in the process of the propagation of logitudinal wave, this paper recounts a new theory and method for the application of pile body completeness inspection data with reflection wave method to the quantitative determination of apparent reflection coefficients and the round travelling time of reflection wave.

摘要从纵波传播过程的反射和透射的基本原理出发，介绍了反射法桩身完整性检测数据在频率域中定量确定视反射系数和反射波往返时间的一种新的理论和方法。

The type of shock reflection over 50o wedge model is of regular reflection. The angle between the incident and reflection shock is also being increased as the model surface roughness increased. The flow visualization results indicate that the speed of reflection shock becomes slower.

在50度的模型实验条件下则会产生正规反射，当增加表面粗糙度后会使得射震波与反射震波之夹角增大，由上述两者结果可以发现，其结果可归因於反射震波之移动速度减缓所致，因此增加表面粗糙度必然会使震波反射有减弱的情况发生。

Had heard reflection self-communion and reflex should be one and the same only in Java Whatwhat is written reflection self-communion and reflex hearing of only in Java should be one and the same I feel is one and the same those who hope somebody can point out them is different Self-communion is introspective, introspection is in reflection bag, use reflection implementation, introspection can be pair of catoptric augment, both is not a concept.

java中只听说过反射自省和反射应该是一回事吧 whatwhat 写道java中只听说过反射自省和反射应该是一回事吧我感觉是一回事希望有人能指出它们的不同自省就是内省，内省在反射包里，是利用反射实现的，内省可以算是对反射的扩充，二者不是一个概念。

The seismic reflectance signatures of the Carboniferous volcanic rocks in the study area are divided into four types, including lobate/wedge reflection, tabular reflection, arc reflection, and mound/mushroom reflection. Based on previous studies and detailed well-seismic correlation, the lithofacies of volcanic rocks corresponding to different seismic reflectance signatures are recognized.

将该区石炭系火山岩体的地震反射特征划分为以下4种：舌状或楔状反射、板状反射、弧状反射、丘状或蘑菇状地震相反射特征；结合前人的研究成果和详细的井震对比，确定了不同的地震反射特征所对应的火山岩岩相。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。