Equivalent calibrations of short horizontal hole artificially defects and big flat-bottomed hole artificially defects or calculation equivalent of big flat-bottom are adopted.
采用短横孔人工缺陷和平底孔人工缺陷的当量标定或用大平底当量计算法。
Equivalent calibrations of short horizontal hole artificially defects and big flat-bottomed hole artificially defects or calculation equivalent of big flat-bottom are adopted.
采用短横孔人工缺陷和平底孔人工缺陷的当量标定或用大平底当量计算法。
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