A stacking sequence optimization design approach of composite stiffened panel was built up based on equivalent bending stiffness method and Genetic Algorithms (GA).

借助于等效弯曲刚度法和遗传算法，建立了一种复合材料加筋板铺层顺序优化设计算法。

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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.

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。

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The authors try to research the classification, sequence structure and stacking pattern of the high-resolution sequence stratigraphy about river facies and further use them to study sand distribution.

由此力求建立适合于河流相沉积的高分辨率层序地层学层序划分方案、旋回结构及叠加样式，并将其进一步运用到河流相沉积体系的砂体时空展布的研究中。

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