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介绍柴油机机油损耗原因及成都铁路局使用机油的一些情况。目的是在保证柴油机良好的润滑情况下，适当延长换油周期，提高经济效益。
Describes the reasons for the loss of diesel engine oil and Chengdu Railway Bureau using some of the oil. The purpose is to ensure the good lubrication of diesel engine, the appropriate extension of the oil change cycle, improve economic efficiency.