磁钩 英文名称: crochet(法) 定义: 太阳耀斑出现时,地磁强度记录上出现的持续几分钟至几十分钟的钩形变化
金属磁记忆检测是无损检测领域的一项新技术，不仅可以对钩尾框的失效进行早期诊断，而且可以对钩尾框缺陷进行准确检测。
Metal Magnetic Memory Testing (MMMT) is a new technology in metal non-destructive test (NDT). MMMT is not only used for failure early diagnosis, but also for defective inspection of steel casting.
研究了磁记忆技术在车钩钩尾框检测中的实际应用，磁记忆技术能够对钩尾框进行准确检测。
The practical application of MMMT in cast steel coupler inspection is studied and the result shows the technique can be used in inspection of steel casting with high precision.
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