求翻译：形象地理解，平稳性就是要求经由样本时间序列所得到的拟合曲线在未来的一段期间内仍能顺着现有的形态“惯性”地延续下去。如果数据非平稳，则说明样本拟合曲线的形态不具有“惯性”延续的特点，也就是基于未来将要获得的样本时间序列所拟合出来的曲线将迥异于当前的样本拟合曲线。是什么意思？

Image understanding, stationarity requires the fitting curve through the sample time series in the future period of time can still follow the existing form of "inertia" to continue. If the data is non-stationary, then the sample fitting curve shape does not have the characteristics of the continuati

To understand that a smooth image of sample is required by the time sequence of the fitted curve in the course of the coming period will still be able to follow the existing "coasting" patterns to continue. If the data is smooth, non-indicating that the sample curve fitting of the morphology does no