Secondly, the phase planes were introduced to find qualitatively the threshold of dynamical behavior, and the influences of parameters change on saddle point were discussed.
然后，用相平面法来对简化模型的阈值特性进行定性分析，给出了参数变化与二维简化模型中的鞍点电压值变化之间的关系。
The test results show that a change in two parameters-the gain and the phase Angle of the feedback control-will have an effect on the stability of the active flutter suppression system.
实验结果表明：改变反馈控制的增益和相位角两个变量，能影响主动颤振抑制系统的稳定性。
The changes of transmission electron diffraction patterns indicate the phase change has occurred at about 220k, and its crystal parameters change obviously.
透射电子衍射花样的变化表明在220k附近发生了相变，它的晶体结构参数明显地变化。
The quantum phase transition (QPT) occurs at zero temperature when the external parameters of some interacting many-body systems change to reach the critical values.
在许多多体量子系统中，随着系统某些外部参数达到它的临界值，在零温情况下量子系统会发生量子相变。
The one-dimensional thermal physical model of the infrared emitting characteristics for phase change materials was given. The key parameters of phase change materials were calculated.
通过建立一维热物理模型，优化设计出相变材料关键性能参数并进行性能预测；
The one-dimensional thermal physical model of the infrared emitting characteristics for phase change materials was given. The key parameters of phase change materials were calculated.
通过建立一维热物理模型，优化设计出相变材料关键性能参数并进行性能预测；
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