在速端曲线法的应用中，一种最有用的变换是反演变换。
A transformation that is most useful in the application of the hodograph method is the inversion transformation.
绘制了两齿面接触点处相对速度的速端曲线图。
The extremity curve of the velocity vector at the contact point was also drawn up.
以淬透性敏感区间内的冷却时间相同为冷速判据，得出了直接计算等效端淬距离的算法；
The algorithm of calculating the equivalent distance of the Jominy sample was deduced by making use of the same cooling time in the Hardenability Sensitive Temperature Range as the cooling criterion.
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