C2412 The High-speed Train

These two techniques were brought up by Qin Guan in the past. The high-speed railway was not only related to the development of the transportation industry in the motherland. It was also related to the deployment of troops during the war. So, Qin Guan found a high-speed rail car from the cemetery and gave it to Nan Che and Bei Che to study together. The most important thing was the walking System