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美国GM公司EMD推出了SD90MAC型4700kW交流传动机车。本文介绍了EMD为SD90MAC型机车设计的16V265H型发动机及其增压器的主要技术参数和设计特点；评述了首批SD90MAC型机车的试验效果。
US GM EMD introduced the SD90MAC 4700kW AC drive train. This paper introduces the main technical parameters and design features of 16V265H engine designed by EMD for SD90MAC locomotive and its supercharger. The test results of the first SD90MAC locomotive are reviewed.