提出了凝固组织晶粒尺寸BP神经元模型。

BP neural network model was put forward for the grain size of solidified structure.

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但对退火组织的铁素体晶粒影响不大。

But effect solution La on annealed structures of steel is weakly.

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但对退火组织的铁素体晶粒影响不大。

But effect solution La on annealed structures of steel is weakly.

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