查询词典 reflection grating

Based on the rigorous coupled wave theory,the phenomenon that the zero order reflection efficiency of rectangular subwavelength grating varies with the wavelength is studied when incidence angle,azimuth and grating parameters are variant.

从严格耦合波衍射理论出发，在不同入射角、方位角和光栅参数下的情况，计算了矩形亚波长光栅零级反射效率随入射光波长的变化。

In addition, broad-linewidth reflection bandstop filter with one-layer grating structure is designed by use of optimization technology for diffractive optical elements and rigorous grating diffractive theory. Finally, rigorous theory is used to analyze photonic crystals for their subwavelength periodic structures.

根据二维光子晶体的结构特点，提出光栅层模型，使二维结构退化为一维结构，从而大大简化了计算过程，提高了计算速度，并编制了计算程序，详细讨论了几类二维光子晶体的禁带特征。

So chirped fiber gratings have broad reflection bandwidth. The group delay in chirped fiber grating reflection bandwidth changes gradually. These properties are what other type fiber gratings do not have.

所以chirped光纤光栅具有宽的反射带宽，在反射带宽内具有渐变的群时延等其它类型的光纤光栅所不具备的特点。

In its reflection over the reality, art comes as a mirror with a certain angle of reflection, and image and the depth of focus depending on the angle; the reflection is always accompanied with persistent blind spots which I would like to leave to my viewers.

艺术若反映现实，艺术便是一种镜效，它有呈现的角度，以及因角度而产生的观照和景深，它会有死角，有永远观照不到的空间，我把这个空间留给了观众。

Thirdly, improve the lighting tank structure, form a arc surface on the top of the tank to get more reflection surface. In this way, the angle of reflection avoids the shelter of the light tube and gets the most reflection.

三是巧妙改进光槽结构，让光槽顶部形成一个弧面，增强反射面；其形成的反射角减少了灯管的遮挡，使有效的反射量最大化。

In the case of read-only CDs, the substrate lies directly next to the reflection layer. In the case of a CD-WO, an absorption layer existsbetween the substrate and the reflection layer. This layer can be irreversibly modified through strong thermal influence, which changes the reflection properties of the laser beams.

就只读CD来说，亚层应紧接在反射层之下，而CD-WO中，在亚层和反射层之间还有一个吸收层，这一层在强热的作用下做不可逆修改，因而改变了激光束的反射特点。

The work is based on a theory-the Dichromatic Reflection Model-whilch describes the color of the reflected light as a linear combination of light from surface reflection and body reflection.

算法首先对图像上的颜色变化进行分析与综合，然后分割图像。

Igneous rocks of Jiyang depression show typical reflecting features on seismic profile. Tabular reflection seismic facies, arc reflection seismic facies and hummocky or mushroom reflection seismic facies are the three main facies.

济阳坳陷火成岩在地震剖面上呈现典型的反射特征，其反射地震相主要有板状反射地震相、弧状反射地震相、丘状或蘑菇状反射地震相等三种。

According to internal reflection texture and external geometric configuration, there are 7 seismic facies identified, with the help of amplitude and continuity, on the PaleogeneNeogene seismic reflection profile of studying area including parallel sheet seismic facies, subparallel wave seismic facies, progradational reflection facies, filling facies, hummocky facies, lens seismic facies and wedged facies.

从内部反射结构和外部几何形态出发，再辅之以振幅、连续性等参数，在研究区的古近系与新近系地震反射剖面上可以识别出7种地震相，分别是平行席状地震相、亚平行波状地震相、前积地震相、充填地震相、丘状地震相、透镜状地震相和发散地震相。

The first rank derivative is a reflection of curve change and its rate, at certain range, if the sign of the first rank derivative has changed, the logging value of the correspondence depth point means maximum in this range; the second rank derivative is the knaggy property reflection of curve, at certain range, if the sign of the second rank derivative has changed, the correspondence depth point represent the inflexion of geophysical logging curve, it＇s also a turning point of the reflection of knaggy change property of the curve, it is the interface of stratum.

测井曲线的值是深度的函数，测井曲线的一阶导数表示了曲线变化的趋势和变化的快慢，在某一范围内，当一阶导数呈现符号转换时，相对应的深度点的测井值即为该范围内极大值；测井曲线的二阶导数则表示曲线的凹凸性，在某一范围内，当二阶导数呈现符号转换时，相对应的深度点代表了测井曲线的拐点，即反映曲线凹凸性变化的转折点，亦即地层的分界面。

Chimborazo and Cotopaxi, took me by the hand.

越过琴博腊索山和科托帕克西山。

This car is in a good condition.

这辆车的状况很好。