bed of sand

At upper flow regime, the total stream power gradually deviate the effective stream power from movable plane bed to existence of sand wave.

在高能态区，从动平整床面到沙浪的出现，总水流功率又逐渐背离有效水流功率。

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Filtration material in filtration column is double layer bed composed of sand and ceramist.

过滤柱中的滤料选用石英砂和陶粒组成的双层滤料。

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To make straws burnt more steadily and efficiently in a circulating fluidized bed, quantity of sand is added as high-temperature inert support so as to intensify the inner circulation.

为了促进秸秆在循环流化床中稳定、高效地燃烧，在床内加入一定量的石英砂作为高温惰性物料来强化内循环。

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This paper presents the analysis and calculation of wave attenuations when waves travel on sand bed, sand ripple bed and muddy bed, respectively.

本文分别分析与计算了波浪在粉沙质海床、沙纹海床和淤泥质海床上传播时波高的衰减。

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The prospector panned off bits of sand and gravel scooped from the bed of a stream.

探矿者淘选从河床中挖出的少量含金泥砂和沙砾.

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The prospector panned out bits of sand and gravel scooped from the bed of a stream.

探矿者淘选从河床里挖出的少量含金泥沙和砂砾.

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Solidity Treatment of Soft Soil Foundation with Intercalated Bed of Fine Sand for Construction of Large Oil Tank

粉细砂夹层软粘土地基直接建造大型油罐的固结处理

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After giving the relationship of equilibrium sand-bed height and average flow velocity, a new probability model for predicting the equilibrium height of sand-bed was built up.

根据平衡砂床高度与摩阻流速和平均流速的关系，建立了计算水平固液两相管流平衡砂床高度的概率模型。

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Due to fluidization, the static bed of sand particles expands and the height of the expanded bed depends upon the fluidizing velocity.

由于硫化作用，静态床沙粒的膨胀和膨胀床的高度主要取决于硫化速度。

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From the ground to the surface of the sand bed, the average volume fraction of sand particles in the sand bed gradually decreases.

从地表至沙床表面，同一平面的沙床平均堆积率逐渐减小。

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Study on the straining action of the sand bed of rapid sand filters in removal of suspended material from water

快滤池滤层对水中悬游物去除作用的研究

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( 3) The bed amplitude ( height of sand ripples) contributes a lot to the neutral curve.

床面起伏（沙纹高度）对中性曲线将产生较大的影响。

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The evaporating capacity of surface soil in mobile dune is mostly rest with thickness of dry sand bed, with the increasing of dry sand bed thickness, the evaporating capacity reduce gradually.

流动沙丘土壤表层蒸发量主要取决于干沙层的厚度，表现为随着干沙层厚度的增加，沙丘表层的蒸发量逐渐降低。

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Based on the results of bench scale drying column and field experiment of pilot sand drying bed, the performance of sand drying beds for waterworks sludge dewatering was researched, and some problems existed in the present design methods for sand drying beds were studied.

通过模型试验柱和小型干化床的现场试验，对水厂污泥干化场脱水效果与干化场设计计算方法进行了考察研究。

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