This text is mainly about the design of a system of polarization Lidar, which has been developed for measuring profiles of DE - polarization ratio of cirrus clouds in day and night.

本文主要讨论一种偏振激光雷达系统的总体设计方案，应用于白天和夜晚卷云后向散射光退偏振比的探测研究。

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The ratio of the stillbirth and the early neonatal death DE creased one stage by one stage.

各阶段死产和早期新生儿死亡比率呈逐阶段性下降。

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By exploring the phase information among symbols of the Direct Sequence Spread Spectrum (DS-SS) signal, a novel de-noising approach, used in low signal noise ratio environment, is presented.

利用DS - SS信号符号间相位信息，提出了一种可工作于低信噪比下的直接序列扩谱(DS - SS)信号噪声抑制方法。

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Mr. FLOYD LANDIS (Winner of 2006 Tour de France): They say that the ratio is out of line, but there's no indication that there's anything unnatural in my body at this time.

NPR: Landis Facing Uphill Battle on Doping Charges

"I was astounded to hear that that there are places in our oceans where the ratio between plastic and plankton is 6-to-1, " de Rothschild told CNN, referring to the area.

CNN: Boat of plastic to set sail with environmental message