对经过预处理的测试数据进行三次样条插值，得到基本时间序列。

First, the testing data must be interpolated and the basic time series must be built.

youdao

对经过预处理的测试数据进行三次样条插值，得到基本时间序列。

First, the testing data must be interpolated and the basic time series must be built.

youdao