Internal defect identification in large-section 42CrMoA continuous casting billets by ultrasonic A-scan and machine learning
SHI Qiang, REN Keshe, XU Wei, XU Xin, LIN Min, CHEN Changhua
Physics Examination and Testing . 2026, (4): 51 -60 .  DOI: 10.13228/j.boyuan.issn1001-0777.20260011

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