查询词典 specular reflection

Incident shock wave ; regular reflection ; Mach reflection ; laminar boundary layer ; separation

入射激波；规则反射；马赫反射；层流边界层；分离

The image characteristics of circular structured light stripe in a micro-object inner surface vision inspection system are analyzed and the false stripes can be divided into two kinds of diffuse reflection and regular reflection.

分析微小物体内表面视觉检测系统中圆形结构光光条图像特徵，将干扰光条分为漫反射和镜面反射两类。

Numerical results demonstrated that there are three kinds of the instability for the under-expanded supersonic jets according to their shock cell structure patterns:(1) the regular reflection shock cell with a single shear layer,(2) the Mach reflection shock cell with two shear layers and (3) the curved Mach stem with a relatively high expansion ratio.

计算结果表明欠膨胀超声速射流的失稳机制根据射流激波结构的特征可分为3种失稳模式：具有规则反射激波结构和单一剪切层特征的射流不稳定性；带有马赫反射激波结构和双剪切层特征的射流不稳定性；具有弯曲马赫杆和高度欠膨胀射流的不稳定性。

In this few decades, scholars paid attention to the research of Bragg reflection in regular waves. Thus, this study aimed to discuss the Bragg reflection in irregular waves. EEMSE is a numerical model based on evolution equation for mild-slope equation developed by Hsu et al.

以往关於系列潜堤之布拉格反射研究，在规则波方面的理论、数值研究与分析都渐趋成熟，而实际应用於海岸保护时需考虑波浪为不规则波，因此本文之重点在於探讨不规则波下之布拉格反射。

From the shadowgraphs, it is observed that the patterns of a plane incident shock wave reflected from the parabolic reflector can be either a regular reflection or a Mach reflection which depends on the shock wave strength and the reflector geometry.

由流场观察得知，入射震波强度较小、收敛角较小的，震波经反射体的反射型态趋向於正规反射，当入射震波强度增强、收敛角增大时，反射型态则会由马赫反射型态再转为正规反射型态。

The reflection of the LO mode, RLO, and its ratio, RLO/RTO, with the reflection RTO of the LO mode increase with increasing angle of incidence. In the case of the polarized incident light,ωLO is a function of angle of incidence and polarization state of the incident.

在45°入射角附近，ωLO几乎与入射光的偏振方向无关；在这个临近角45°两侧，ωLO和入射光的偏振方向的关系呈现相反趋势：当入射角小于45°，ωLO随着入射光极化仰角θ的增大而减小，当入射角大于45°，ωLO随着极化仰角θ的增大而增大。

So, researching the influence to reflection wave features made by the factors, such as sand and mud thin-bedding seismic reflection feature, the thickness of single layer in the thin-bedding group, the thickness of subroutine structure, the number of layers in the thin-bedding group, type of incident wavelet, main frequency, sampling rated has the moment current significance and theoretical significance in the qualitative or quantitative seeking of single layer's thickness or thin layer group's thickness in the thin-bedding and forecast of the space distribution laws of thin reservoirs.

目前我国东部的石油勘探工作已进入精细勘探阶段，如何确定陆相地层中薄储层的空间展布规律及其性质已成为一个亟待解决的问题，由于我国东部的绝大多数中、新生代陆相含油盆地大都以薄层砂、泥岩沉积为主，夹有少量薄层碳酸盐岩、页岩及膏盐层，地层岩性和厚度横向变化均较大，而且这些地层的厚度远远低于常规地震勘探的垂向分辨率，因此，从理论上研究沙泥岩薄互层地震反射特征、薄互层组内的单层厚度、子结构厚度、互层组内层数、入射子波类型、主频、采样率等各种因素对反射波特征的影响，将对我们定性或定量求取薄互层组中各单层厚度或薄层组的厚度、预测薄储层的空间展布规律有一定的理论和现实意义。

It is introspective that Unsid writes self-communion, introspection is in reflection bag, use reflection implementation, introspection can be pair of catoptric augment, both is not a concept.

unsid 写道自省就是内省，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 flow field structure over wedges of 30 o, 40 o and 50o by shadowgraph technique, and the sandpaper has been used to change the surface roughness of the model wedges. The shock reflection over wedges of 30o and 40o are of Mach reflection.

本实验使用影图法来撷取於斜角为30、40及50度之楔行体斜面上震波反射的流场结构，并利用砂纸来改变模型表面之粗糙度，从极度光滑至表面砂纸平均粗糙度为0.0174cm共做四组实验来进行分析与比较。

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。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。