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EMD(美国通用发动机公司电气动力部)经过全面的调查分析,对其所生产的电传动内燃机车的许多部件作了改进,使其保持最高的综合效率。
After thorough investigation and analysis, EMD (General Electric Company of the United States Department of Electrical) to improve the many components of its electric drive diesel locomotive made to maintain the highest overall efficiency.