采用＂中断法＂研究了取向硅钢二次再结晶过程中的异常长大行为，确定了二次再结晶发生的温度范围。

The secondary recrystallization and its temperature range of grain oriented silicon steel have been studied by the method of interrupting secondary recrystallization annealing.

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动力学研究表明，在硝酸硫胺沉淀结晶过程中，初级成核是主要的成核方式，当晶浆密度较高且过饱和度很低时，二次成核不能忽视。

Primary nucleation was the main nucleation mode in the precipitation process. However, secondary nucleation cannot be ignored when the slurry density is high, and the supersaturation is low.

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研究表明，一次和二次ecae加工对P p结晶度和密度的影响较小。

The results showed that the effects of ECAE processing on density and crystallinity of PP were minor.

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