查询词典 reflectivity

The calculated results indicate that the dielectric function, complex reflectivity index and absorption spectra of the crystal are related to the electronic structures of the crystal.

介电函数的虚部、吸收光谱、折射率等的峰值位置存在一一对应关系，这与电子从价带到导带的跃迁吸收有关。

First, the paper discusses microwave anechoic chamber design techniques before the reflectivity level of quiet zone is calculated.

在对暗室静区反射率电平进行计算以前，本文先讨论了微波暗室的设计，主要可分为以下几个步骤： 1。

In order to achieve the large critical angle of total reflection and high reflectivity, studying the algorithm of neutron supermirrors is necessary and significant.

而要制作出具有高反射率的中子超反射镜，就要求其结构中具有尽可能少的膜对数。本文从这两个目标出发，开展了中子超反射镜设计方法的研究。

Taking use of the reflectometer which is installed on the 3B1 line in BSRF, two kinds of measurements of reflectivity versus wavelength and reflectivity versus incident angle are carried out.

利用安装在北京同步辐射装置3B1束线上的一台小型反射率计，对磁控溅射方法制备的软X多层膜进行了R～θ、R～λ两种反射率测量，得到实测反射率高达32％的满意结果，同时给出了理论计算对实验的拟合，二者符合的很好。

In the case of 10% reflectivity, less than 3.7ns with 8.6:1 pulse-compression ratio has been observed. As our acknowledgement, that is the first reported.In addition, a new type of phase conjugator using tapered fiber is designed, which combined the higher reflectivity of small core-diameter fiber and higher damage threshold of large core-diameter fiber.

为了获得更高的能量反射率和稳定性，我们自行设计了一种新型的锥度光纤，并应用于LD泵浦的双通放大DPL系统中；实验表明：应用锥度光纤相位共轭器可以获得高达85％的能量反射率和90％的相对稳定度。

Observation of radar and intensive surface wind of 0505 typhoon Haitang is used to analyze the relationship between radar reflectivity and observed precipitation and the relationship between mesoscale surface stream field and heavy rainfall. The analysis shows that when the Doppler radar reflectivity reaches 50 dbz, it has a good correspondence to the heavy one hour precipitation. Besides, heavy precipitation is also related to the mesoscale cyclonical current and confluent currents, it occurs near the mesoscale cyclonical or confluent current appearing at the same time.

利用严重影响浙江东南地区的2005年05号台风的雷达和地面加密风场资料，分析对比台风中尺度暴雨过程中雷达回波与实况降水、中尺度地面流场与暴雨之间的关系，结果得到：多普勒雷达近地面强回波带或中心往往达到50 dbz时，与一小时的强降水区有很好的对应关系，暴雨中心区也与地面加密的中尺度流场中出现的中尺度气旋性环流和汇合气流有关，强暴雨区落在同时刻中尺度涡旋或汇合线附近。

It is indicated by reflectivity results that the absorbing layer should have an optimum thickness to make the reflectivity minimal for honeycomb-structured absorbing materials with different height of honeycombs.

反射率计算结果表明，不同的蜂窝高度，吸收层对应一最优厚度，使蜂窝结构吸波材料的反射率最低。

The sea water with suspended sand has very high reflectivity in yellow and red wavebands; however, the reflectivity decreases sharply into infrared waveband.

含悬浮泥沙的海水，在光谱的黄，红范围，具有很高的反射率，但到红外后急剧下降。

It was found that the reflectivity reduced down to a minimum in 0.5 ps after pump excitation, and then started to increase sharply up to a new maximum larger than the initial reflectivity in several picoseconds.

发现光激发后0.5ps时间内，反射变化率降到最小值，然后开始迅速增加，在几个皮秒时间内达到大于初始反射率的新的最大值。

The results show that the simulated track of Bilis has about 39% and 16% improvement averaged during the 72 h forecasts after the assimilation of dropsonde and QuikSCAT data, respectively. The simulation of radar reflectivity is also improved. Similarly, the simulated track of Kaemi is improved by 26% and 21% by assimilating dropsonde and QuikSCAT data, respectively. However, the data assimilation appears to have no improvement in terms of radar reflectivity simulation for the Kaemi case.

结果显示，碧利斯台风在加入投落送资料与QuikSCAT资料后，对模拟6至72小时的平均路径误差除分别有52 km及16 km的改进外，对雷达回波强度之模拟也有所改善，而凯米台风在加入上述两种资料后，对模拟路径误差之整体改进则分别达到71 km及42 km；6月中旬梅雨锋面个案同化该两种资料后之雷达回波模拟强度也有所改善，而与观测较为接近。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。