多孔铝合金的孔隙率梯度主要是由渗流驱动压力梯度与凝固顺序所决定，而颗粒的自然堆积密度影响相对较小。
The porosity gradient of porous aluminium is mostly affected not only by the spontaneous stacking density of granules, but also by the infiltration pressure gradient and solidification sequence.
在固液相填充复合体系中，采用合理的颗粒级配可使颗粒排列更加紧密，提高堆积密度。
In composite system filled with solid and solid liquid phase, rational particle grade improve particles arrangement closer and increase stacking density.
采用灰色关联分析方法研究粉煤灰水泥颗粒群堆积密度对粉煤灰水泥强度与流动度的影响。
It studies on the influence of the heaped density of pulverized fuel ash cement granular group on pulverized fuel ash cement strength and fluidity by gray connected analysis method.
通过对溶胶-凝胶处理过程采用不同的工艺方法，比较了不同颗粒直径和堆积密度的反应粉末对合成产物中碳化硅晶须形貌和产率的影响。
The effect of reaction powders with different pellet diameter and bulk density on the productivity and microstructure of sic whisker was studied by adopting different sol-gel handling methods.
球形颗粒荧光粉的光散射面积最小，堆积密度大，有助于提高发光材料的发光强度和使用寿命。
Spherical particles have minimum scattering area, high packing density; which is beneficial to the luminescent intensity and lifetime of the devices.
因此，当成品的颗粒大小分布、残留水份含量、堆积密度和颗粒形状必须符合精确的标准时。
So, when the finished particle size distribution, residual moisture content, bulk density and particle shape must conform to precise standards.
颗粒形貌对模型沙的水下休止角，起动流速、堆积密度等性能有显著影响。
The shape of model sand particle play an important role in submarine rest angle, starting speed, bulk specific weight and some other physical characters.
因此，当成品的颗粒大小分布、残留水分含量、堆积密度和颗粒形状必须符合精确的标准时，喷雾干燥是一道十分理想的工艺。
Therefore when the distribution of granule size, final moisture, bulk density, granule shape of finished product must be conformed to accuracy stard, the spray drying is an ideal process.
因此，当成品的颗粒大小分布、残留水分含量、堆积密度和颗粒形状必须符合精确的标准时，喷雾干燥是一道十分理想的工艺。
Therefore when the distribution of granule size, final moisture, bulk density, granule shape of finished product must be conformed to accuracy stard, the spray drying is an ideal process.
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