我们很高兴地发现，这个告诉我们，这个运动，是个简单谐波运动。

And I couldn't be happier, because this tells me that the motion is that of a simple harmonic oscillation.

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数值计算得到了转子系统在特定参数范围内的分叉图，系统存在亚谐波、概周期和混沌等非协调运动。

The diagrams of bifurcation, sub-harmonic, quasi-periodic and chaotic motion with typical parameters are numerically created.

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目的：通过与基波成像(FI)的对比，研究自然组织谐波成像(nthi)对冠心病节段运动观察的改善情况。

Objective: Compared to fundamental imaging (FI), we used native tissue harmonic imaging (NTHI) to improve image quality on regional wall movement of left ventricle in coronary disease.

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