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叙述了当前机车柴油机曲轴修理的几种工艺方法，并着重介绍目前一种新型的董氏镀铁技术在ND5型机车柴油机曲轴修理中的运用情况。
Describes the current locomotive diesel engine crankshaft repair several process methods and focuses on the current introduction of a new type of Dong’s iron plating technology ND5 locomotive diesel engine crankshaft repair the use of the situation.