Finally, a new approach (BP Network) to predicting the durability factor of concrete has been proposed here.

最后，本文提出用BP神经网络预测混凝土抗冻耐久性系数的方法。

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There's got to be a durability factor.

还必须有耐久性。

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There's got to be a durability factor.

还必须有耐久性。

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