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本文主要依据七十年代以来,国外几个主要的拖拉机柴油机生产公司(厂)所发表的资料,对三十台有代表性的、40～100马力的中等功率拖拉机柴油机就其动力经济指标及其平均先进水平、产品的发展及系列化等加以综述,可供有关人员参考。
This article is mainly based on the data published by several major foreign tractor diesel engine production companies (plants) since the 1970s. It has an economic and economic index for 30 representative 40- to 100-horsepower medium-power tractor diesel engines. The average advanced level, product development and serialization are reviewed for reference by relevant personnel.