反射比

The analysis shows that the reflection spectrum is the multiple beams interference, and the coupling ratio is similar to the reflection coefficient of Fabry-Perot cavity. The larger the ratio is, the finer the extinction ratio is and the narrower the full-width at half maximum will be.

分析表明器件具有法布里－珀罗腔干涉仪的特点，耦合器的耦合比系数类似于法布里－珀罗腔的反射率，耦合比系数越大，输出光谱半高全宽度越窄，消光比越好。

An elliptical parabola with the same dimensions would have smaller gain by about 1 dB in relation to this analyzed rectangular, with the same efficiency, because of smaller geometric surface of the elliptic parabola.

一个同样尺寸，同样效率的椭圆形抛物线反射器，比这个长方形反射器低大约1dB的增益，这是由于椭圆形抛物面几何表面小一些。

Experiment results show that equiangular spiral antenna basked EBG structure has a wider frequency bandwidth, higher gain, and larger front-to-back ratio than a traditional spiral antenna with ground plate; and also the thickness of antenna is reduced obviously.

实验结果表明，背衬EBG材料的等角螺蜷天线与传统的带反射板的等角螺蜷天线（辐射器离反射板的高度为λ／4）相比能够同时提高增益、展宽带宽、改善前后辐射比，并且显著减薄天线的厚度。

Every Design is Manufacturable reflects the huge benefit that EDM has brought to design engineers, allowing them to relax traditional manufacturability constraints and design products with optimum functionality. Efficient Domestic Manufacturing reflects the fact that EDM is, increasingly, the process of choice for manufacturers in high-wage countries such as the United States, because the EDM process is so much less labor intensive than almost any other machining process.

每个设计是Manufacturable反射EDM给设计工程师带来了，给他们放高效率的国内制造业反射事实EDM是，越来越，选择的过程为制造商在高薪水国家例如美国，因为EDM过程比几乎其他用机器制造的过程非常较不劳动密集型。

Using this optimal value,satisfying output power and extinction-ratio can be achieved.

结果表明，光纤出光端面的反射率存在一个最佳值，再配合适当的双色镜反射率，能使多波长输出的功率和消光比达到很好的均衡。

The bands near 2300nm become vague and fade away in the diffuse NIR spectra of pink relicts along with leaching time. The bands between 1300 and 1600nm of activated palygorskite are much wider than un-activated one. The diffuse spectra of unactivated and activated gray palygorskte are slightly different.

粉红色残留物的漫反射NIR谱的研究显示2300nm附近的吸收峰随酸浸蚀时间的延长而模糊并消失，且1300nm～1600nm范围的吸收峰比未经酸浸蚀者的该区域吸收峰宽；灰白色坡缕石的漫反射NIR谱随酸浸蚀时间的延长未发生明显的变化。

YAG laser with 1.06μm wavelength and undoped multimode step quartz fiber are used in experiment,and the cha...

实验上采用 1.0 6μm的YAG激光器和无掺杂多模阶跃石英光纤，测得了能量反射率和波形的变化规律，获得的最大反射率为 69%，脉宽压缩比为

The time-resolved hemispherical reflectance and transmittance of the slabs with linearly varying refractive index are obtained for various optical thicknesses, scattering albedos and substrate reflectances.

接著，求各种光学厚度、散射比和基底反射率的线性可变折射系数平板的时间分解半球反射率与半球穿透率。

By ultrasonic echo noise-reduction testing on CS-1-5 test block's flat bottom hole and certain helicopter totors' fatigue flaw, it is shown that ultrasonic signal SNR is increased remarkably.

经对CS-1-5试块的Φ2平底孔超声反射回波和某型直升机旋翼大梁疲劳裂纹超声反射回波的降噪试验，试验结果表明，处理后的超声信号信噪比显著增强。

The reflections and refractions Raytrace material generates are more accurate than those produced by the Reflect/Refract map.

光线追踪材质所产生的反射和折射效果要比反射/折射贴图所产生的效果更加精确。

We will see more and more activist government policies that distinguish economic activities according to the nationality of the actors.

我们将看到越来越多激进的政府政策，这些政策根据企业的国籍来区分经济活动。

If we can prove the independence of an axiomatic system, then we can guarantee the conciseness of this system, ie.

如果能够证明某个一阶谓词系统的独立性，那么就能够保证该系统的建立是精炼的，即没有任何一条公理或推理规则是多余的。