中文说明：
通过把分散在时间轴上的离散数据看成一组连续变化的序列，采用累加和累减的方式，将灰色系统中的未知因素弱化，强化已知因素的影响程度，最后构建一个以时间为变量的连续微分方程，通过数学方法确定方程中的参数，从而实现预测目的。
English Description：
The discrete data scattered on the time axis is regarded as a series of continuous changes, and the unknown factors in the grey system are weakened and the influence degree of the known factors is strengthened by means of accumulation and subtraction. Finally, a continuous differential equation with time as the variable is constructed, and the parameters in the equation are determined by mathematical methods, so as to achieve the purpose of prediction.