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对东风4 型机车 12V2 4 0ZJ型柴油机机体破损情况进行了描述。选用焊接法对故障机体进行了修复 ,介绍了具体焊接工艺过程及注意事项。
The damage of the body of the 12V2 4 0ZJ diesel engine of DF4 locomotive is described. Use welding method to repair the fault body, introduced the specific welding process and precautions.