Contrast experiment shows that multi-time factors can improve the quality of prediction equations and make effective rate reach 90.0 percents and reduce sum of residual squares 23.8 percents meanly.

• 对比试验表明，多时刻因子可改善大多数预报方程的质量，有效率达90.；0%25；多时刻因子使预报误差明显减小，预报方程的残差平方和平均减少23