我们采用灰色预测方法与平均增长量外推法相结合，建立了一种新型的预测模型——灰色组合预测模型。
We use gray dopesting method and averagely ascending quantity outside pushing method, set up a new dopesting model-gray prefab dopesting model.
对预测结果的分析表明，多点外推法不仅减少了平均误差，也使最大误差降低，能有效提高预测精度。
Practical results show that the proposed method lowers both average error and maximum error and improves forecasting precision.
对预测结果的分析表明，多点外推法不仅减少了平均误差，也使最大误差降低，能有效提高预测精度。
Practical results show that the proposed method lowers both average error and maximum error and improves forecasting precision.
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