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来源：雅诚德英语网
The world rail electric traction converter technology equipments ha ve taken new headway in advancing efficiency and reducing wasting and pollution in the21st century.
进入21世纪，世界轨道电力牵引变流技术装备在降耗提效、减少污染方面取得了新的进展。
The world rail electric traction converter technology equipments ha ve taken new headway in advancing efficiency and reducing wasting and pollution in the21st century.
进入21世纪，世界轨道电力牵引变流技术装备在降耗提效、减少污染方面取得了新的进展。