观察到了此类激光器的锁频状态，其绕数按照法瑞树的规则组成魔梯。
Frequency-locked states with their winding numbers which form the devil's staircase are observed in this kind of lasers.
检查钢丝绳，若发现钢丝绳在一个搓绕节距长度内折断根数超过6根时，需更换新的钢丝绳。
Check the steel rope. If the broken number exceeds 6 within a lay length, a new steel rope will be needed.
基于空泡动力学及概率统计理论，本文建议了一种预测绕流体初生空化数的方法。
Based on the bubble dynamics and the probability theory, a method for estimating the incipient cavitation number is suggested.
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