Sand bed filtration of colloidal particles

Pack-to-formation median grain size ratio Discussion on the construction technology of borehole pile in the sand bed

充填物与地层砂粒度中值比浅谈在砂层中钻孔桩施工的技术措施

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This method reaped quite good geological effect in the seismic interpretation of thin sand bed in Pucheng area.

在该区，用此方法对薄砂层地震资料进行解释，取得了较好的地质效果。

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The fittest germination condition is sand bed and changing temperature ( 25-35 ℃).

栝楼种子的最适发芽条件是砂床、25～35℃变温。

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Prediction and experiment for α wave equilibrium sand bed height in horizontal well gravel-packing based on equilibrium velocity

基于平衡流速的水平井砾石充填α波砂床平衡高度预测与试验

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The analysis of model scale for estimating scour of sand bed in front of a vertical breakwater

堤前海床冲刷模型比尺理论分析

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The study shows that ( 1) porous dissipation of wave energy may be neglected on sand bed;

研究表明，波浪在粉沙质海床上传播的渗透损耗可以忽略不计；

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On Reservoir Productivity Forecast for Jishan Sand Bed in Shengli Oilfield

胜利油田基山砂岩体产能预测研究

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This paper presents an experiment for measuring the acoustic energy loss in the sand bed in water tank.

介绍了测量声波穿透沙层后能量损失的水池实验。

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The construction of the sand bed used as mould, its preparing and drying were described.

叙述砂床的构造、制作及烘干方法、浇注温度的控制等。

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Design for the Guangzhou subway tunnel with Watered sand bed

广州地铁杨体区间含水砂层设计

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With the dry sand bed thickness increasing, the evaporation quantity decrease gradually;

随着干沙层厚度的增加，土壤蒸发量逐渐降低；

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The suppression rate of evaporation increases with the dry sand bed thickness increasing;

各观测日的蒸发抑制率随着干沙层厚度的增大而增大；

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Problems of design and construction of hand-excavated pile expanding bottom in sand bed

人工挖孔桩在砂层上扩底时应注意的设计与施工问题

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Influence of dry sand bed thickness on soil moisture evaporation in mobile dune

流动沙丘干沙层厚度对土壤水分蒸发的影响

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A sand bed interpolation technique in line with the basic rule of thin layer comparison

符合小层对比原则的砂层内插技术

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A prediction method for permeable sand bed in land facies formations

陆相地层渗透性砂层预测方法

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Construction experiences of large area sand bed

大面积砂垫层施工技术实践

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Application of water-absorbent to vegetation rebuilding in sand bed

高分子吸水剂在沙地植被重建中的盆栽效果试验

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The germination tests take sand bed as the best.

发芽试验以沙床为最好。

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Germination was faster in paper bed than in sand bed.

在纸床上的发芽速度大于砂床。

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