血流壁切应力对颈动脉斑块及其稳定性有何影响，尚存在不同的看法，需要进一步的研究。
There are controversial ideas how vascular wall shear stress take an effect on plaque in carotid artery and its stability.
并且分别从隧道围岩稳定性方面、围岩变形方面、应力分布方面、经济和技术方面以及安全方面得出结论。
And reach a conclusion in the tunnel and stability of the surrounding rock, rock deformation, stress distribution, economic and technical aspects of security.
预应力技术可以改善钢结构的强度、刚度和稳定性，调整钢结构的动力性能。
Prestressed technology can improve the strength and rigidity and stability, and adjust the dynamic performance of steel structure.
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