... frequency breakdown ==> 频率激降,频率崩溃 frequency bridge ==> 频率电桥 frequency calibration ==> 频率校准 ...
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The main effect of inflectional instability mode in the final breakdown seems to interact with the disturbances having developed and thus widens the frequency spectrum to turbulent state.
属于拐点不稳定性的高频二次不稳定模态对最后转捩的影响主要体现在与其它扰动的相互作用，并导致出现紊流状态宽带频谱。
ZJC-50KV controlled by computer, through the man-machine dialogue mode, the voltage breakdown insulation, power frequency withstand voltage test.
50 KV采用计算机控制，通过人机对话方式，完成对绝缘介质的工频电压击穿，工频耐压试验。
Spectrum analysis reveals the frequency characteristics of vortex breakdown point oscillation and spiral wave.
频谱分析确定了破裂点脉动和螺旋波的频率特征。
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