sand layer

基本解释

When the seam was extracted, water from the sand layer penetrated into some coal faces.
煤層開採後，一些工作麪出現了砂層水滲入井下的現象。
The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.
有含溼砂層存在的被動蒸發冷卻層屋麪的溫度波衰減，在本質上不同於乾燥狀態情況。
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.
本文採用有傚應力原理分析了液化土層對設計反應譜的影響，分析中考慮了砂層的厚度、埋深和輸入地震動等因素。

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