气管软骨应力松弛曲线是以对数关系变化的，气管软骨为非线性粘弹性材料。
The tracheal cartilage stress relaxation curve is changed by the logarithm relations, the tracheal cartilage is the non-linear viscoelastic material.
结果表明：时效温度范围内7050铝合金的应力松弛曲线表现为典型的对数衰减曲线。
The results show that in traditional aging temperature, the stress relaxation curve of 7050 aluminum alloys exhibits a classical logarithmic decrement curve.
结论：应力松弛曲线是以对数关系变化的，动脉粥样硬化对升主动脉应力松弛特性具有一定影响。
CONCLUSION: the stress relaxation curve alters in a log relationship, and atherosclerosis has an influence on the stress relaxation characteristics of the ascending aorta.
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