This paper mainly discusses the confirmation of the steel plate flaw in the thick steel plate ultrasonic crack detection system.

这里论述了在中厚钢板超声探伤系统中，钢板缺陷的确定以及钢板缺陷位置的确定。

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This paper mainly discusses the confirmation of the steel plate flaw in the thick steel plate ultrasonic crack detection system. And the process of finding the flawed position is also discussed.

这里论述了在中厚钢板超声探伤系统中，钢板缺陷的确定以及钢板缺陷位置的确定。

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Steel thick plate of steel sheet and the same.

厚钢板的钢种大体上和薄钢板相同。

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