采用漏磁法对炮管进行无损检测时，漏磁信号中含有噪声。
When magnetic flux leakage (MFL) means is employed in nondestructive evaluation of gun muzzle, MFL signal contains noises.
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.
在采用漏磁法对输油管道进行无损检测过程中，信号会受到各种噪声的干扰。
There are varying noises in output signal obtained from magnetic flux leakage nondestructive testing of oil pipeline.
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