说明：  这是一部分关于插值处理试验数据的程序，用于对实验数据比较分散采用二次样条曲线插值，进而将其数据点密化填充便于后续数据处理。
(This is a part of the program about interpolating the experimental data, which is used to disperse the experimental data and use the quadratic spline interpolation, and then fill the data points densely to facilitate the subsequent data processing.)