In this paper we delves into a combinatorial forecast method of the martingale difference series and give a set of the trace formulas.

利用户用风光互补发电系统的匹配计算程序，给出了太阳电池组合板不同跟踪方式下的计算结果。

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Compare to them, the result was that the nonlinear combinatorial forecasting method applying to the runoff forecasting based on the wavelet network can improve the forecast precision.

又小波网络较神经网络有更多的优点，通过比较，证实基于小波网络的非线性组合预测方法用于径流预报中更能提高预测的精度。

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