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分析了KZL4 - 13型锅炉发生锅筒后管板裂纹事故的原因 ,确定了修复项目 ,制定了修理工艺过程和方法。
The reason of tube plate crack after KZL4 - 13 boiler tube accident was analyzed, the repair project was confirmed, and the process and method of repair process was established.