The result indicates: when the weakly secondary shear grows (decays), the maximum value of the perturbation kinetic energy also grows (decays), and the change of the energy accelerates (slows).

• 结果表明：当环境流中弱二次切变强度增加（减少）时，扰动动能的最大值增加（减小），扰动动能的变化加速（减速）；