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介绍机车柴油机对所用机油的要求及所用机油进展情况,着重介绍目前国外普遍采用的四代机油及最近开发的五代机油的情况。
Describes the locomotive diesel engine requirements for the use of oil and the progress of the use of oil, with emphasis on the fourth generation of oil commonly used abroad and recently developed five generations of oil situation.