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活化核心密度是核沸腾过程的重要参数，但其描述方法至今尚未统一。为了避免活化核心密度直接测量的困难，提出根据核沸腾换热机理模型预测沸腾表面的活化核心密度，预测得到的六种表面的活化核心尺度分布曲线与表面活化核心的分形分布相一致，证明了表面活化核心尺度分布具有分形特征这一结论具有普遍意义。
Activated core density is an important parameter in the nucleate boiling process, but its description has not yet been unified. In order to avoid the difficulty of direct measurement of activation core density, we propose to predict the activation core density of the boiling surface according to the model of nucleate boiling heat exchange. The predicted core size distribution curves of the six surfaces are consistent with the fractal distribution of surface activation core. The conclusion that the surface-activated core scale distribution has fractal features has universal significance.