对于不同渐变过渡段长度，其最佳楔形凹槽深度由实验试凑法得到。
The optimal depths of the wedge-shaped notch for different tapered transition lengths have been determined by trial and error.
采用能量法原理对冷弯变形过程进行研究与分析，建立了变形过渡区长度的理论表达式。
The cold-bend forming process was studied using energy method and a theoretical length expression of the transition zone of delormation was thus derived.
指出了在确定轨道过渡段长度时，所采用的动力学性能评价指标，提出了确定轨道过渡段长度的方法。
The evaluation indexes are chosen, and a new method, called critical transition section length, is put forward to determine track transition section length.
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