When the temperature is kept consta

When the temperature is kept constant, the coalescence of bubbles is a spontaneous process, which will make the thermodynamics of the system gradually move from unstable state to stable state. In the process of bubble coalescence, the pressure difference between adjacent bubbles will lead to thinning of the film between adjacent pores, thus causing coalescence of adjacent bubbles. The formation of coalescence process makes the original spherical stomata gradually change into irregular stomatal structure through the process of continuous coalescence and coalescence, thus leading to uneven stomatal structure.