إنهم يبنون هايبرلوب! جيد لهم. يجب أن نفعل ذلك في أمريكا.
Massimo
Massimo‏14 أغسطس، 07:30
China is testing a vacuum high-speed train that can travel over 1,000 km/h. This ultra-fast vacuum tube magnetic levitation system could reduce the travel time between Shanghai and Hangzhou (distance: 200 km) to just 9 minutes.
‏‎46.24‏M