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详细介绍了有关密封槽焊补后的修复加工技术，提出了许多构想，并进行了实践和验证，为大直径深孔内壁复杂型面的加工提供了精确、方便、可行的方法。
The repairing and processing technology of seal groove after welding repair is introduced in detail. Many concepts are put forward, and the practice and verification are put forward. It provides an accurate, convenient and feasible method for the machining of the complex profile on the inner wall of large diameter deep hole.