... ☆ PPR管材 PPR-PIPE☆ ☆PPR管件 PPR-FITTING☆ ①弯头 Elbow ...
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The results of application of PPR model to the precipitation prediction in three regions are better than that of stepwise regression for fitting and prediction.
在三个地区应用ppr进行降水量预测建模、模型的拟合及预留预测检验结果均好于逐步回归建模的相应结果。
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