对所有的回热式低温制冷机，压力波与质量流之间的相位控制是达到制冷效果的关键。
To all the regenerative refrigerators, to control the phase angle between the pressure and the volumetric velocity is pivotal to attaining satisfactory refrigeration effect.
了解电声器件的相位特性对有源消声控制器的设计及消声效果分析具有重要作用。
It is important to understand the phase characteristics of electro-acoustic device for the design and effect analysis of active noise cancellation controller.
相位设计是信号控制交叉口进行配时设计时需要首先解决的问题，直接决定着控制方案的效果。
The phase design of intersection signal control is the first problem to solve in intersection automation design, directly affecting the control project.
通过和有相位传感器以及其他无相位传感器方法实验结果比较，该方案有很好的控制效果。
Through comparing the different ways, the result of waveforms has proved that this control strategy gives good performance.
外激励相位控制采用微小信号控制并使控制信号与系统的不稳定周期轨道达到最佳相位匹配，获得最佳控制效果。
The small control is adopted also in the phase control and the best phase matching between the control signal and the unstable periodic orbit is reached. Then the best effect of control is got.
相位对流动控制效果的影响不大；
The flow suppression effect is not sensitive to phase difference.
相位对流动控制效果的影响不大；
The flow suppression effect is not sensitive to phase difference.
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