sand layer

基本解釋

When the seam was extracted, water from the sand layer penetrated into some coal faces.
煤層開采后，一些工作面出現(xiàn)了砂層水滲入井下的現(xiàn)象。
The attenuation of temperature wave in humid sand layer on an evaporation cooling roof differs from that in dry sand layer in essence.
有含濕砂層存在的被動蒸發(fā)冷卻層屋面的溫度波衰減，在本質上不同于干燥狀態(tài)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.
本文采用有效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