裂纹深度的加大降低了系统周期运动的稳定性。
The stability of the periodic motion decreases as the depth of the transverse crack on the rotating shaft increases.
最后根据赫斯特指数对该轴回转运动的稳定性进行了描述。
At last, Hurst exponent was adopted to describe the stability of axes rotating motion.
我们探讨了弱聚焦磁场中带电粒子轴向和径向运动的稳定性问题，得到稳定性条件。
We discussed the stability of both radial movement and axis movement of charged particle in infirm focusing magnetic field and obtained the term of stability.
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