The formation of twin structure depends on the slip of stacking fault for nucleating and extending.
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 results showed that the dislocation density was very high in as-melt alloy with a small amount of stacking fault and twin.
分析结果表明，铸态合金中含有少量的层错和孪晶，但位错密度较高。
The twin screw extruder fault diagnosis by multi-fault classifier based on SVM is mainly discussed and the retest proves that this SVM really has preferable ability of classification.
诊断实例表明，基于支持向量机的多故障分类器对设备故障具有很好的分类效果。
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