最大剪应力通常发生在剖面的中和轴处。
Maximum shear stress generally takes place at the neutral axis of ship section.
而骨剖面线扫描分析显示，骨剖面上的元素分布具有明显的差异，表明骨内外表面与中间部分的元素发生了富集或流失。
The apparent difference in elemental distribution in the bone cross section showed that the enrichment or loss of elements can occur not only in the inner and outer surface, but also in the middle.
结论不对称入口速度剖面可能是诱发动脉粥样硬化发生的一个危险因子。
Result Asymmetric inlet velocity profile deflexion could increase the area of low shear stress and the gradient of shear stress.
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