A fractal prediction model of sliding friction forces was derived based on the fractal geometry theory. The validity of the model was verified theoretically.
基于分形几何理论，推导出了滑动摩擦力分形预测模型，并从理论上对该模型的正确性进行了分析。
2
The validityof these data is sufficiently verified by the population prediction for the past 25 years the yearly forecast accuracy of the total population being within 1%.
其有效性通过过去25年人口预测得到了验证，其中每年总人口的预测精度基本上在1%以内。
3
The feasibility and validityof this model in municipal solid waste output prediction is tested by the practical example.