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。
To counter the defects of intensity inspection of cement concrete pavement, the basic principle and method of non-destructive intensity inspection of pavement by transient Rayleigh wave are presented.
针对目前水泥混凝土路面强度检测的缺陷，提出了利用瞬态瑞雷面波法无损检测路面强度的基本原理和方法。
Radiographic ct imaging technology, a high performance non-destructive testing method, is quite appropriate for inspection and quality control of steel pipes.
射线ct成像技术作为一种高效的图像检测手段，特别适合对钢管截面的尺寸参数进行检测和控制。
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