For the rapidity and traffic densityoftrains on high-speed railway, larger traction power is needed, so the electric power supply is adopted.
高速铁路列车速度快、行车密度大,要求牵引功率高,电力牵引成为高速铁路动力牵引的必然选择。
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The paper hence suggested that to achieve transportation task for year 2000, China rail way should actively increase in train density while raising traction load oftrains.