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本文介绍了东风4 B型机车进行部级鉴定试验所采用的试验大纲、产品抽样情况、鉴定试验的时间、地点、试验条件和主要鉴定试验结果以及部级鉴定意见的综合,最后提出了分析意见及改进措施。
This paper introduces the outline of the test adopted by DF4B locomotive at the ministerial level, the sample of the product, the time and place of the qualification test, the test conditions and the results of the main qualification test as well as the opinions of the ministerial level appraisal, and finally puts forward the analysis opinions And improvement measures.