unit trial operation 中文意思是什麼
unit trial operation
解釋
綜合試運行-
The trial operation of the vehicle lasting more than one year indicates the advantages of the electronic control unit and excellent performance of the traction system
該車輛在上海莘閔線投入試運營1年多,充分展示了其電子控制單元的先進性和牽引系統的性能優勢。
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