我们绘制了该晶体的结构投影图和孪晶结构示意图。
The projection of KPB crystal structure and schematic diagram of twinning structure have been drawn.
孪晶结构的形成依靠堆垛层错的滑移运动而形核和扩展。
The formation of twin structure depends on the slip of stacking fault for nucleating and extending.
采用同步辐射形貌术结合化学腐蚀法，系统研究了NYAB和NGAB晶体中的孪晶结构。
The twins in NYAB and NGAB crystals were investigated by synchrotron radiation topography and chemical etching method.
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