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介绍二轴转向架的线路运行性能，阐述刚性轮对自导向转向架、弹性轮对自导向转向架以及独立轮转向架的优缺点，认为弹性轮对自导向转向架适于多曲线的山区线路；刚性轮对转向架具有较大的提速潜力。
This paper introduces the running performance of biaxial bogie and describes the advantages and disadvantages of self-steering bogie, self-steering bogie and independent bogie of bogie wheel. It is considered that the elastic wheel is suitable for multi-curvilinear mountainous line ; Rigid wheels on the bogie has a great potential for speed.