Thebaseofthe rack is parallel to the end rail (the short end of the pool table) and positioned so the apex ball of the rack is located on the foot spot.
架的基础与结束栏杆（池桌子的短结束） 平行而且放置，如此架的顶球位于脚地点之上。
2
Sleeper is regarded as a finite long beam on continuous elastics base. The relation between rail forces and sleeper displacement is established by analysis of sleeper forces.
将轨枕视为连续弹性基础上的有限长梁，对轨枕进行了受力分析，建立了钢轨轴向力和轨枕变形曲线的关系。
3
The repair methods in production to various troubles ofrail of coke-barrier car: base being not solid. serious deform and etc. are introduced.