Based on the local synthesis method, the meshing behavior is optimized with the help of controllability of the second order contact parameters.

由局部综合法，利用二阶接触参数的可预控性，从而优化弧齿锥齿轮的啮合性能。

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A method of field calibration technique for wheelset profile non-contact measurement was proposed by using second-order polynomial warping technique.

本文利用二元二次多项式变形技术，提出了一种轮对外形尺寸非接触测量的现场标定方法。

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Weight don't influence the gait period of the left single step. Second, weight don't do much contribution to the contact order and leave order of the left foot.

体重是动态足底压力的主要决定因素，但体重对左单步触地时间没有大的影响。

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