sand layer

基本解释

When the seam was extracted, water from the sand layer penetrated into some coal faces.
煤层开采后，一些工作面出现了砂层水渗入井下的现象。
The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.
有含湿砂层存在的被动蒸发冷却层屋面的温度波衰减，在本质上不同于干燥状态情况。
This paper presents the effects of soil liquefaction on design response spectrum in terms of effective stress theory by considering the thickness and depth of sand layer, and the earthquake intensity.
本文采用有效应力原理分析了液化土层对设计反应谱的影响，分析中考虑了砂层的厚度、埋深和输入地震动等因素。

Indeed, by taking several cores, progressively further from the coastal dune, and seeing how far a sand layer extends, he can make a good guess at how powerful a passing hurricane was.
ECONOMIST: Eye on the storm The
It could be removed later by scraping up the top layer of sand.
ECONOMIST: A slick off America's coast