Test specimens shall be taken after all non-destructive testing (NDT) has been carried out and which has passed the relevant inspection criteria for the NDT method(s) used.
试样的截取应在所有非破坏性试验（NDT）已经完成并已经通过所用NDT方法的相关检查依据后进行。
Reliability assessment method for NDT is described on the basis of analyzing the factors affecting the reliability of NDT. The way to improve the reliability is also given.
在分析影响无损检测可靠性因素基础上，介绍了无损检测可靠性的评估方法及提高无损检测可靠性的途径。
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