The EMU will serve as master model vehicle on Beijing- henyang rapid passenger railway line with a maximum unning speed of 270km/h,which makes it the fastest EMU in hina at present for commercial operation.¡°China Star¡°is omposed of 2 power cars,and 9 trailer cars which include first-class sitting cars,6 second-class sitting cars and bar car.The EMU uses advanced AC-DC-AC electric raction, with 2 power cars pulling at the front and ushing at the back.The car unit is developed with xtensively use of national and international advanced echnology, which makes its whole technological erformance reach the advanced level of the similar roducts at home and abroad.