Two area defects are twins and grain boundaries.
有两种面积缺陷，即孪生和晶粒间界。
Two area defects are twins and grain boundaries .
有两种面积缺陷，即孪生和晶粒间界。
With elongation increase, high stress concentrations tend to occur at grain boundaries.
随着延伸率增大，晶界易成为应力集中区。
With elongation increase, high stress concentrations tend to occur at grain boundaries.
随着延伸率增大，晶界易成为应力集中区。
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