因此，位错系统是一个反应-扩散系统。
Therefore a dislocation system is a reaction-diffusion system.
将位错的增殖、湮没与相互反应看作化学反应，位错在热激活作用下具有扩散性质。
We regard the proliferation, the annihilating and the mutual reactions of the dislocations as chemical reactions, dislocations under action of heat activation will have properties of diffusion.
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