Curved train

曲裾───Curved train

In order to study the straight and circular curved track stability of each vehicle in the train set, a mathematical model of vehicle system with 17 freedom degrees was set up.───为了研究列车中各车辆在直线上和大半径圆曲线上的蛇行稳定性，建立了具有17个自由度的车辆系统非线性数学模型。

At south the parasol tree of the branch curved way, I with south rather, Harbin etc. ground of car fan see a train together, clap a train.───在南岔的梧桐弯道，我和南宁，哈尔滨等地的车迷一起看火车，拍火车。

at the center of the image, near those smaller reservoirs.To the east is a moving train -- the bright curved line.───在偏东部，卫星捕捉到了一列行进中的火车----一段高亮度曲线。