... lowest safe waterline 最低安全水位 low-frequency cycle 低频周期 low-head axial flow water-turbine pump 低水头轴流式水轮泵 ...
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low frequency cycle stress 低频循环应力
Based on the orthogonal test design, this paper studied the effect of low cycle stress, high-low cycle stress ratio , high cycle number and high cycle frequency on complex fatigue life.
在高低周复合疲劳研究中采用了正交试验设计的方法，并以此为基础综合研究了低周应力、高低周应力比、高周循环次数和高周循环频率对复合疲劳寿命的影响及其机理。
Perhaps the term "vibrating" is not quite accurate since they are designed for low frequency vibration and the vibration cycle is intermittent.
也许“震荡”一词并不准确，因为它们的设计是低频震荡，而且周期是间断性的。
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