The other 80 acres are being reserved for Second Life residents who can earn land for free if they suggest viable car-related projects – one has already built a go-kart track there. 其余80英亩留给第二生命的居民&如果他们能提出可行的汽车项目建议,就可以免费获得土地。目前已经有人在那里建了go-kart赛车道。
The Shanghai Yangtze River bridge is reserved for the layout of light rail track and is planned to lay gapless track on it. The longitudinal stiffness of the piers will directly affect the strength of the rails. 上海长江大桥预留轨道交通并铺设无缝线路,桥墩纵向刚度直接影响钢轨强度。