结果表明，该交变漏磁法对钢管表面较小裂纹具有较高的检出率。

The result shows that there is high rate of recognition about the little defect on the thin steel pipe by alternative current magnetic leakage flux method.

youdao

结果表明，该交变漏磁法对钢管表面较小裂纹具有较高的检出率。

The result shows that there is high rate of recognition about the little defect on the thin steel pipe by alternative current magnetic leakage flux method.

youdao