sand bed meaning in English
砂层；（过滤池）砂床
砂质河床
沙层
沙质河床
Examples
- However , there are much silt , silty clay , and silt - and - sand bed in the highway grounds of many provinces and cities
我国许多省市的公路地基中大量存在着淤泥、淤泥质粘土、淤泥混砂层。 - 11 in some northern areas sand beds are enclosed under greenhouses to promote evaporation as well as to prevent rain from falling into the beds
在北部的一些地区，沙床被围绕在了暖房之下来促进蒸发，也用来防止雨水落入沙床里。 - 15 raw sludge , no matter from primary or secondary settling , will not drain well on sand beds and will usually have an obnoxious odour
生的（未经处理的）泥浆，无论是来源于初次或者二次的沉淀，都不会很好的渗漏在沙床上而且会散发难闻的气味。 - Whether sand can saltate from sand bed surface and quality of sand incipience are very important to the sand transport and the form of wind - blown - sand
沙粒能否起动以及起动质量如何，如起动初速度、起动角度等参数都直接关系到沙粒的输运和风沙两相流形成。 - 6 , clustering analyzing method has been used , and guan 3 - 6 sand bed sets have been divided into 5 fluid units quantificationally . the spacing distribution of the fluid units and their controlling function to the residual oil distribution has been descripted
6 、应用聚类分析方法，定量地将南区馆3一6砂层组分为五种流动单元，并描述了各流动单元的空间分布及对剩余油分布的控制作用。