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通过对T型接头、搭接接头角焊缝射线照像采用直接透照技术所存在问题的分析讨论，提出了利用楔块补偿或采用偏互补偿的方法改善像质，提高检测效果。
Through the analysis and discussion of the problems existing in direct radiographic technique of radiographic T-joint and lap joint fillet welding, the method of using wedge compensation or partial offset compensation is proposed to improve the image quality and improve the detection effect.