According to the echo area and intensity change of target cloud, the qualitative judgment that the artificial rainfall is effective or not can be gotten.

根据作业云回波面积和强度的变化，可定性判断人工增雨是否有效。

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The bottom image shows the same echo returns with their altitude mapped according to a second image that displays the cloud-top heights.

底部的图像显示了同一个回返图像，其中根据显示云顶高度的第二张图像映射高度属性。

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According to laser radar echo characteristic, the difference filter and the match filter were adopted. As a result, the SNR is advanced about 1.5 times.

根据三脉冲激光雷达回波信号的特点，对信号进行差分滤波和匹配滤波处理，信噪比提高约1.5倍；

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According to the magazine Sada al-Malahem, or the Echo of the Epics, published by al Qaeda in Yemen, al-Shiri attended a media session in which Yemen commander Abu Baseer was interviewed.

CNN: Detainee went from Gitmo to al Qaeda, official says

First-time buyers are circling east LA neighbourhoods like Boyle Heights, Echo Park and the unincorporated parts of East Los Angeles, according to Smith.

BBC: Living in: Los Angeles