C152 China's High-speed Rail Standards

At the same time, Zhao Cheng and Zhang Hong are also looking at the transformer problem.

"Elder Zhao, is this a hardware problem or a software problem?" Zhang Hong tilted his head and looked at Zhao Cheng, "It can't be the same as the South Power Station. Back then, in order to build the CRH1 train, we had to buy grass and even the screw cap. Because of the binding sales