Technicians taking part in the hot-running test are seen in a train of the Guangzhou Metro Line 18 before a hot-running test in Guangzhou, Guangdong Province, yesterday. The electric train, with a maximum designed speed of 160 km per hour, carried out the first hot-running test in the small hours of yesterday morning, in order to conduct a comprehensive inspection of the subway power supply, signals, communication, rails and its electromechanical system . Xinhua |