Structure testing in low magnificution, chemical composition analysis and microstructure examination were used to analyze the edge cracking of strip steel coil.
采用低倍组织试验、化学成分分析及金相检验等方法，对出现边裂的带钢卷进行了解剖分析。
In transient state signal and in image analysis, the point of discontinuity often is one of important characteristics, they are located the edge of the important structure frequently.
在瞬态信号与图像的分析中，突变点往往是重要的特征之一，它们常常位于重要结构的边缘部分。
Profile formula for hard gear chamfered edge hob and its error analysis are introduced. A new kind of chamfered edge hob structure and manufacturing engineering are investigated.
介绍了硬齿面滚刀倒棱的齿形计算公式和误差分析，探讨了新型的倒棱滚刀结构方式及制造工艺。
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