若L=L1或L2，则射线底片和内检测数据中制管焊缝与环焊缝相交位置吻合

If L=L1 or L2, the intersection of the tube-making weld and the girth weld in the radiographic film and the internal inspection data coincides, and the welding mouth is consistent with the radiographic film; <br>if L≠L1 or L2, the radiographic film and the internal inspection data The intersection position of the pipe welding seam and the girth welding seam does not coincide, and the welding mouth is not consistent with the radiographic film.

If L-L1 or L2, then the ray negative sinand and internal detection data in the tube weld and ring weld intersection position coincides, the weld port and ray base are consistent;<br>If L-L1 or L2, the tube weld in the ray negative and internal detection data does not match the intersection position of the ring weld, and the weld port is not consistent with the ray negative.

If l = L1 or L2, the intersection position of pipe weld and girth weld in the radiographic film and internal inspection data is consistent, and the weld joint is consistent with the radiograph;<br>If l ≠ L1 or L2, the intersection position of pipe weld and girth weld in the radiographic film and internal inspection data is not consistent, and the weld junction is not consistent with the radiograph.<br>