Research purposes: To solve the problems on designing continuous welded rail on bridge in the small radius curve section.
研究目的：解决小半径曲线地段桥上无缝线路设计的难题。
The checking calculation of coupled cars in negotiation of the curve with small radius is an absolutely necessary design calculation for newly manufactured cars.
连挂车辆通过小半径弯道曲线的校核计算是新造车辆必不可少的设计计算 ，也是确定不同形式车辆能否实现兼容连挂的必做计算。
The transition curve of 6th power function is a higher quality of transition curve in theory and practice. It is also suitable for use to a small radius circle curve as a transition curve.
理论和实践证明，六次代数式缓和曲线是一种质量较高的缓和曲线，它适用于作小半径圆曲线的过渡曲线。
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