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确定了机车柴油机的清洁度检测规范，并通过对试验给天的回归分析和对进口动力机械清洁度的实际调查，提出了机车柴油机出厂清洁度检测控制标准．
The cleanliness test specification of locomotive diesel engine is confirmed. Through the regression analysis of test days and the actual investigation on the cleanliness of imported power engine, the control standard of locomotive diesel engine cleanliness testing is put forward.