The paper first demonstrates the maximum speeds that can be achieved at the different stages of Beijing-Shanghai High-speed Railway and derives the minimum curve radius on the basis of them.
本文首先对京沪高速铁路各个时期所能实现的最高速度进行了论证，并据此推算出最小曲线半径值；
This paper discusses the criteria and principle for minimum radius of curve and the transition curve for railway track when running 160kin per hour.
本文研究了我国时速160公里铁路最小曲线半径与缓和曲线的设计原则和标准。
Theoretical analysis proved that the curve radius critical value of free way should be adopted by the limit of minimum radius .
理论分析证明，高速公路曲线半径临界值应采用极限最小半径。
Third, argument-polar radius curve of polar coordinate system whose pole is geometric gravity is formed, and maximum and minimum value points are searched.
然后以重心为极点，对边缘点极坐标化，形成幅角-极径曲线，在该曲线上寻找局部极大极小值点。
Third, argument-polar radius curve of polar coordinate system whose pole is geometric gravity is formed, and maximum and minimum value points are searched.
然后以重心为极点，对边缘点极坐标化，形成幅角-极径曲线，在该曲线上寻找局部极大极小值点。
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