The pressure oscillation is amplified when it oscillates in phase with heat release rate fluctuation, and it is reduced when it oscillates out phase with heat release rate fluctuation.

• 实验结果表明，如果热释放率的波动与压力振动的相位一致时，会加大燃烧室的压力振动：如果热释放率的波动与压力振动的相位相反时，就会减小燃烧室的压力振动。