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    YUAN Chun-zhou, YIN En-xiang, GE Hai-feng, XU Jiang. Ultrasonic Testing of Drill Collar Threads by Small Angle Incidented Longitudinal Waves[J]. Nondestructive Testing, 2006, 28(2): 100-101.
    Citation: YUAN Chun-zhou, YIN En-xiang, GE Hai-feng, XU Jiang. Ultrasonic Testing of Drill Collar Threads by Small Angle Incidented Longitudinal Waves[J]. Nondestructive Testing, 2006, 28(2): 100-101.

    Ultrasonic Testing of Drill Collar Threads by Small Angle Incidented Longitudinal Waves

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