在射线摄片中得到的缺陷图象,都是二维平面图象,因而判定缺陷对工件的危害程度,仅以缺陷的长和宽为依据。这在大多数场合能满足生产实际的需要。但任何缺陷一般总是呈体积状的,过大的缺陷高度(相对于长、宽而言),也会增大对工件的危害性。所以,在评片中,还须大致判定缺陷的高度,方可最后下结论。 Defect images obtained in radiography are two-dimensional planar images, and thus determine the extent of damage to the workpiece defects, only the length and width of defects based. In most cases, this can meet the actual needs of production. However, any defects are generally always volume-like, too large defect height (relative to the length and width), will also increase the danger of the workpiece. Therefore, in the film review, we must also determine the general level of defects before the final conclusion.