“the time of flight diffraction (TOFD) ultrasonic testing method”的概念、定义、翻译、参考文献-科学参考

单词	the time of flight diffraction (TOFD) ultrasonic testing method
释义	the time of flight diffraction (TOFD) ultrasonic testing method Physics ＞声学＞声学材料＞释义 the time of flight diffraction (TOFD) ultrasonic testing method衍射时差法
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