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METHOD AND APPARATUS FOR ULTRASONIC INSPECTOR FOR DISSIMILAR METALS* WELDED PORTION
METHOD AND APPARATUS FOR ULTRASONIC INSPECTOR FOR DISSIMILAR METALS* WELDED PORTION
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机译:异种金属*焊接部分的超声波检测器的方法和装置
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摘要
PURPOSE:To inspect quickly and exactly the defect in welded portion of dissimilar metals, by utilizing phenomenon that ultrasonic wave reflected from defective portion becomes in-phase or opposite-phase with transmitted ultrasonic wave depending on density, impedance, etc., of material of inspected object.
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