模拟结果表明，在高于功产生的临界温度梯度时，波动压力振幅被显著放大。
The simulation result shows that the dynamic pressure amplitude was amplified obviously when the temperature gradient was above the critical value.
本文讨论了丝网型回热器能在纯行波状态下起振的临界温度梯度与结构参数及运行参数的关系。
This paper analyses the critical temperature gradient of a regenerator under a simplifying assumption for different structure and operating parameters.
还研究了压力梯度对临界雷诺数的影响，探讨了不同压力场对流动稳定性作用的规律性。
The effect of the pressure gradient on critical Reynolds number is also displayed and the influence rule of the different pressure fields on the flow stability is exploited.
当激光入射到非均匀的各向同性等离子体时，垂直于主密度梯度方向的密度分布会发生变化，使临界面呈现波纹。
When laser beam is incident on an inhomogeneous isotropic plasma, the variations in density profile perpendicular to main density gradient may develop, producing a rippling of critical surface.
结合伯努里方程和临界牵引力理论，得到了基于临界速度的临界水力梯度公式；
Coupling the Bernoulli's equation and critical tractive stress theory, a critical hydraulic gradient model based on critical velocity is developed.
结果表明，非保守FGM斜板的临界颤振荷载随梯度指标和夹角的增大而减小，随长宽比的增大而增大。
The effects of the gradient index, skew angle and aspect ratio on the stability of the non-conservation FGM skew thin plate were analyzed.
结果表明，非保守FGM斜板的临界颤振荷载随梯度指标和夹角的增大而减小，随长宽比的增大而增大。
The effects of the gradient index, skew angle and aspect ratio on the stability of the non-conservation FGM skew thin plate were analyzed.
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